Wednesday, May 16, 2012

Ice Cream (I don't drink coffee, I take tea my dear)

Coffee and tea ice cream with cinnamon sugar cookie

If bread is my first culinary love, then ice cream is my second. I blame my parents. We didn't go out to eat much when I was a child - just here and there, on special occasions; most frequently to the local 'Chinese' restaurant for 'Chinese chicken and chips' - basically fried chicken and french fries. My mother cooked most of our food at home, and processed foods did not feature very heavily in my diet. Ice cream, however, did make appearances more often than most, and for years it was what I would always order in a restaurant for dessert (and sometimes, I still do). My eyes still light up at the mention of a scoop of Neapolitan ice cream (with layers of strawberry, chocolate and vanilla)...

Ice cream allows for a lot of creative experimentation. The base is relatively straightforward, once you make it a few times, and can be adapted to many flavors. This is one reason why I love to make it so much. It is an outlet for individual expression! And this 'art', you get to eat.

Coffee was one ice cream flavor I made often. I don't drink coffee - I never got into it, and still have no interest - but I love to eat it - that is, to put it into baked goods and desserts. Surely, you ask, what is the difference? I believe that it is the sugar, which I find necessary to balance coffee's astringency, but which I don't care for in drinks. I never used to like drinking tea either, and now think it was for a similar reason - I didn't like sugar in my drink. But I have found that tea (especially higher quality tea) does not need sugar for me to enjoy it. It was when I tried tea black that I started to appreciate it.

I have always thought of coffee and tea together, for obvious reasons, but I had never come across a black tea ice cream. Green tea ice cream I had tried, and made. Why not black tea? So I decided to try it.

It just so happened that I had some coffee ice cream languishing in the freezer at the same time, and so I   came up with the idea of a pairing - coffee and tea. This was partly inspired by reading about (the restaurant) The French Laundry, in California, in Grant Achatz's book Life, On The Line. Achatz worked at the French Laundry before opening his own molecular gastronomy restaurant in Chicago, Alinea. At the French Laundry, dishes had whimsical names and were based around themes, such as 'oysters and pearls'.

I needed something to unite the two elements in my 'pairing', so I came up with a cinnamon sugar cookie. Cinnamon is a flavor that works well with coffee and with tea. Cookies also work with both drinks.

It was after putting together this dessert that I realized it was in a way an allegory of my life in the United States. Over the last ten years since I moved here from England, I spent quite some time agonizing over my national identity. At first I felt English, and thus different from the Americans around me. Then as time went on, I became more removed from 'Englishness', and my friends back home described my accent as becoming 'more American". At the same time, Americans usually can tell that I am not from here. This left me feeling stuck in the mid-Atlantic - a man without a country. It took me some time to realize that the country doesn't make the man (or woman), and that nationality is largely a meaningless label. Sure, growing up surrounded by English culture had an effect on who I am today, but much less than I had given it credit for.

Whether or not this consciousness affected my idea for the dish, I am uncertain. But now I see myself as the cookie, between coffee (the US) and tea (the UK)! The title of this post comes from the Sting song Englishman in New York (also the inspiration for the name of my older food blog - An English Cook In America:

I don't drink coffee, I take tea my dear
I like my toast done on one side
And you can hear it in my accent when I talk
I'm an Englishman in New York...

For the following ice cream recipes, it is necessary to have an ice cream machine. This is mine - a simple Cuisinart - it is available for about $40 (USD).

This ice cream maker is very simple. The base contains a motor, which spins a bowl (which is frozen by placing it in the freezer at least a day ahead of time). A paddle sits in the bowl, held stationary by the lid. So the paddle stays still and the bowl rotates around it, keeping the ice cream base moving as it slowly freezes. I find that the churning process usually takes around 20 minutes.













Coffee Ice Cream

To make the base for the coffee ice cream, scald 1.5 cups (12 fl oz, 350 ml) heavy cream in a saucepan. This means to heat it until just before it boils (you'll see tiny bubbles forming around the edge). Once it reaches this point, take the pan off the heat and add 3.5 oz (100g) whole coffee beans. Put a lid on the pan (or plastic wrap), and set it aside to cool for at least 30 minutes, and preferably longer. This allows the beans to 'steep', releasing their flavor into the cream.

Leave the beans to steep for as long as you like. Longer will result in more flavor, but less liquid (as the beans soak up the cream). When you are ready, strain the cream into a measuring jug. Discard the beans. Add enough milk to make the total volume of liquid up to 2 cups (16 fl oz, 475 ml).

Cooking the base

Pour the milk/cream mixture into a heavy-bottomed 2 quart (approx. 2 liter) saucepan. Set up a metal bowl on ice (or in cold water) with a fine strainer over it.

Crack 4 egg yolks into a medium bowl. Add 7 oz (approx. 1 cup, 200g) sugar. Now switch the heat on under the saucepan (with the milk/cream mix in it) to medium. While it is heating up, whisk the sugar into the yolks until they become pale yellow. Have a wooden spoon and ladle on hand.

Keep an eye on the milk/cream mixture. As soon as it scalds (see above), ladle some hot milk/cream onto your yolks, and whisk to incorporate. Then quickly transfer the contents of the bowl back into the saucepan, stirring constantly with the wooden spoon. As soon as the mixture in the pan will coat the back of the spoon (test by drawing a line in it with your finger - if the line holds, it's ready), quickly tip it out of the saucepan, through the strainer into the cold metal bowl. Stir to help it cool down. It is very important not to let the mixture cook beyond the spoon-coating point, as if you allow it to boil, the eggs will curdle (scramble) and your base will be unusable.

Once cooled down, chill your base in the refrigerator. Once chilled, churn it in the ice cream maker, then transfer to the freezer in an airtight container to "ripen".


Tea Ice Cream

This ice cream uses a very similar base. For the tea flavor, I used 1 tbsp black tea leaves that had already been used to make tea. I did this because it reduces the chance of astringent flavors in the ice cream. It also allowed me to drink the tea beforehand! If you don't have loose tea leaves, substitute a once-used tea bag. It doesn't really matter what kind of tea you use, but I would avoid strongly-flavored teas.

Put your tea leaves or bag into a heavy-bottomed 2 quart saucepan with 2 cups (16 fl oz, 475 ml) half and half, or 1 cup of milk and 1 cup of heavy cream. Scald the half and half (as described under coffee ice cream), and remove from the heat and cover with a lid, allowing it to sit for at least 30 minutes.

Next, cook the base as described above (under coffee ice cream) using 4 egg yolks and 7 oz sugar. The tea leaves can stay in the base until the strainer stage, and can then be discarded. Cool, chill, churn and freeze.


Cinnamon Sugar Cookies

These cookies will be baked at 350 F (175 C), so preheat your oven. The butter also needs to be softened ahead of time - just leave it out at room temperature for an hour or so.

Cream 4 oz (1 stick, 115g) softened butter with 7.5 oz (1 cup, 210g) sugar - that is to say, whisk the ingredients together until "creamy" (if you have a food mixer with a paddle, use it - it will be much easier). Stir in 1 egg and a splash of vanilla extract. Mix together 1 1/3 cups (6.25 oz, 175g) flour - this can be all-purpose (AP) or a blend of AP and whole grain flours - with a pinch of salt, 1/2 tsp baking powder and 1/8 tsp cinnamon and fold into the butter mixture.

Form into small balls (about 1 tsp of dough) and set on parchment paper lined (or greased) cookie sheets, spaced apart a little. Press the balls so that they flatten into discs. Bake at 350 F, rotating the sheets after 5 minutes, and removing from the oven when the bottoms of the cookies are golden brown. Total baking time should be approximately 10 minutes. Take cookies off sheets and cool on a rack. Once cool, store in an airtight container.


Ice cream science

This technique of making ice cream uses a custard base - it is made up of a milk/cream component, eggs yolks and sugar, that are cooked until the yolks thicken the mixture. The thickening occurs by virtue of the unfolding and interconnection of the egg yolk proteins as they are heated. It is important to temper the eggs (by adding a small amount of hot liquid onto them before adding them to the rest of the liquid) in order to bring their temperature up gently and avoid curdling. Curdling happens when the mixture is heated too far - over 185 F (85 C) - and the protein network begins to break down.

Once the base is made and cooled, the most important factors determining the quality of the ice cream are the size of the ice crystals and the amount of air incorporated into the mix. A small size of ice crystal is desirable, as smaller crystals are less noticeable on the tongue, resulting in smoother ice cream. The crystals can be kept small by freezing the mix quickly - this means that the bowl of your ice cream maker should be as cold as possible. Air in the mix helps to destabilize it a little, and makes it less dense by increasing the overall volume (this effect is called overrun). Overrun is maximized by stirring while freezing - hence the paddle in the ice cream machine.

Another factor that can affect the quality of the finished product is the temperature of your freezer. In order for the churned mix to freeze quickly into smooth ice cream, the freezer temperature must be low enough (ideally no higher than 0 F/-18 C). It is also advisable to freeze your ice cream in an airtight container, which will prevent freezer odors from affecting the flavor, and also hold freezer burn (drying out due to exposure to the air) at bay.


Variations and Related Posts

There is no end to the number of possible flavor combinations you can use in ice cream. You can use fruit, herbs, spices, cheese, even savory ingredients.

The following posts can be found on An English Cook in America.

Vanilla Ice Cream
Milk Chocolate Malt Ice Cream
Butter Pecan Ice Cream
Lavender Honey Ice Cream
Caramel Ice Cream
Coconut Ice Cream
Green Tea Ice Cream

Variations for mint and cinnamon ice creams are listed under the vanilla ice cream post.

I have also tried the following variations:

Chai Tea Ice Cream - made as for the tea ice cream above, but adding the following spices to the half and half right at the beginning (they will be strained out at the end) - a slice of fresh ginger, a few cardamom seeds, a small piece of cinnamon stick, 2-3 cloves, a few black peppercorns and a pinch of fennel seeds.

Basil Ice Cream - Way, way better than it sounds! Take 1 large bunch of basil, pick off the leaves and blanch them in boiling water - meaning, drop them in, let them have about 10 seconds, then immediately transfer them to ice cold water to stop the cooking. Remove from the ice water and squeeze dry. Set aside. Make an ice cream base with 2 cups of half and half, 5 yolks, 7 oz sugar. Cook, strain and cool as described above, then add the basil leaves to the cooled base and blend in - a stand blender is best for this. Chill, churn and freeze.

Sub-lime Ice Cream - My favorite variation so far. Zest 5 limes and add them to 2 cups of half and half with 2 slices of fresh ginger. Scald the mixture (see above), cover the pan and allow to cool, then chill in the fridge overnight. The next day, strain out the ginger and zest and make a base with 5 yolks and 7 oz sugar. Cook, strain and cool as described above, then stir in 1 tsp ground ginger and 1/4 tsp cayenne pepper. Chill, churn, freeze.

Maple Bacon Ice Cream - Cut 2 slices of bacon into small squares (1/4 inch/6mm) and render in a small saute pan (cook gently until all of the fat has melted out and the meat is crispy but not burned). Set aside to cool (remove bacon from the liquid fat while still warm). Make a base with 2 cups of half and half, 5 yolks and 4 oz sugar. Cook and strain as described above, then stir in 5 oz maple syrup and allow to cool. Chill, then churn. Add the bacon pieces as the ice cream solidifies in the machine. Freeze.


References/Further Reading

On Food and Cooking - Harold McGee

Monday, January 23, 2012

My Daily Bread

Half whole-wheat sandwich bread


I have always loved fresh bread, still warm from the oven - it is probably my favorite food, and it is one of my favorite things to make. Bread and pastries appeal to the scientist, the artist and the craftsman in me. There are set measurements, a technique to follow (and reasons behind it). There is hands-on manipulation of raw material, and there is shaping and some degree of creativity and variation in how you make or use the end product. Working with bread has helped to open my eyes to the fact that I have been neglecting my artistic side for some time. Thus it seems fitting for it to be the first entry in this blog.


I started making my own bread about two years ago. The decision to stop buying bread from the grocery store was motivated by a desire to be more conscious of what I was eating. When I moved to the States from England, I noticed how much sweeter the supermarket bread was here. Commercially available sandwich bread often has many additives, including HFCS (High Fructose Corn Syrup), a common sweetener. Many people claim that HFCS is unhealthy. Whether or not this is true, I see no need for it in my bread.


I take a simplistic approach to the food that I make: keep the ingredients simple, and avoid pre-processed food where possible. If I do all of the processing, then I know what's in it. The bottom line here is that there are only three necessary ingredients in regular bread - yeast, flour and water. Salt is, as far as I am concerned, indispensable - without it the end product would be extremely bland. However, bread is still bread without salt. You could argue that bread is still bread without yeast but, unless you use an alternative leavening agent (e.g. baking soda), it would be very dense, and in my opinion, inedible.


I have played around with baking various different breads, from baguettes (a staple at the restaurant at which I work) to Ciabatta (my personal favorite), pita bread and pizza. The bread that follows, a simple sandwich bread, is probably the most versatile of those that I make. Its shape makes it ideal for slicing (and hence sandwiches), but it is also great with butter at the beginning of a meal, for mopping up sauces (especially for mussels or stews), for breadcrumbs, bread pudding and many other uses. It does lack a crispy crust and big air holes - both attributes I enjoy in bread to eat out-of-hand - but this makes it more suitable for sandwich making.


The Science


The science of bread-making is fairly straightforward. Yeast is added to flour and water. The yeast dissolves in the warm water, as the flour forms a dough. The yeast, which is made up of microbes (microscopic organisms), uses the process of fermentation to break down carbohydrates in the flour into carbon dioxide gas, water and alcohol (which evaporates during baking). Meanwhile, you are kneading the dough - working it with your hands. This mechanical action develops the gluten, a network of protein fibers running through the dough, that forms spaces in the dough. The kneaded dough is allowed to sit in a warm place, and the yeast grows, producing gas, which expands the dough by filling up the spaces, blowing it up like a balloon.


When it comes time to bake your dough, putting it into a hot oven serves two purposes. First, it causes the water and alcohol to vaporize, producing gas that further inflates the dough (this is called 'oven spring', and is magnified by the addition of steam). Second, it cooks the bread, killing the yeast, setting the structure by transforming the gluten proteins (which cross-link together) and starches (which absorb water, swell and set, popping the gas pockets and forming a sponge) and drying out the crust.


The Ingredients


Start by deciding which flour (or flours) you want to use. You can make bread from pretty much any kind of wheat flour, and from other grains besides. The best flours for bread are the 'strong' ones, often labeled 'bread flour'. They have a higher protein content (usually 12% or higher), which translates to more gluten after kneading.


Contrary to 'popular' opinion, gluten is not bad, or bad for you, unless you are allergic to or intolerant of it. If your body can tolerate it (and most of us can), there is no reason to avoid it. Gluten is necessary for light, airy bread. Without it, the yeast would have no structure to pump gas into as it grows.


Simple diagram of wheat grain
There is, of course, more to flour than just protein content. Another important consideration is whether to use whole grain or refined flour. Whole grain flour, as the name implies, contains the entire wheat grain - bran, germ and endosperm. Refined flour is produced by separating out the endosperm, leaving most of the bran and germ behind. The bran and germ together contain all of the fiber and most of the fat, minerals and  vitamins in the wheat grain. The endosperm contains the starch and most of the protein. Refining flour therefore removes a lot of its nutritional value. Most refined flours are then 'enriched' - they have B vitamins and iron added back in. However, they are still missing vitamin E, zinc and fiber (and there is evidence that the body absorbs vitamins and minerals more readily in their natural form than as supplements).
Good, tasty bread can be made with refined white flour, and most of the breads I have made previously had no whole wheat flour in them. Recently, however, I have started incorporating whole wheat flour into all of my baked goods, including breads, for its nutritional benefits.

There are some disadvantages of using whole wheat flour in breads. Such breads tend to be heavier and more dense (the wheat germ and bran interfere with gluten formation, leading to less rise). You must also store the flour in the refrigerator or freezer, as the fats in the bran and germ will eventually go rancid at room temperature.


If you decide to use whole grain flour, I would suggest mixing it with refined flour - I use up to 50% whole grain flour in my bread and other baked goods. This way, you get the nutritional benefits, but without the bread becoming too heavy.


As far as water goes, the most important thing is the temperature. It must be tepid - slightly warm. If it is too hot, the yeast will die. If it is not warm enough, the yeast will be sluggish. Some bakers recommend using distilled or spring water, claiming that chlorine in tap water can inhibit yeast growth. This is probably true, but seems to me to be an unnoticeable difference. It is also very convenient to get the temperature right by adjusting the taps! Maybe the ideal solution would be a filter on your tap? However, I don't think it's worth worrying about too much.


For yeast, the most convenient form is dried yeast, which should be kept refrigerated or frozen after opening. Fresh yeast can also be used, but a larger quantity is needed. It must be stored in the refrigerator or freezer at all times, and is very perishable.


Salt is simple - use any kind you like. Fine or coarse, iodized or not, it all dissolves in water and makes the final product taste better, up to a point! If you use too much, your bread will not only be unpleasantly salty, it will also not rise properly. Salt inhibits the growth of yeast. Bread made without salt rises really well, but doesn't taste very good! The most important thing with salt is, if possible, to weigh it. The reason for this is that there are many different shapes and sizes of salt crystals out there, and an ounce of salt will occupy a different volume depending on the crystals. One ounce of fine salt, which pours like sand, will take up less space than an ounce of flaky salt, in which the flakes sit in disarray, with plenty of air spaces between them. In this case, the difference is significant. I'll give a rough guide to volume for those without a scale, but you may need to use trial and error to fine tune it. However, I would highly recommend owning a scale - it will help your baking immensely.


Note that salt is not the only ingredient that is better weighed. Different flours also will weigh differently for the same volume. It is less important for this recipe, because you will be adjusting the amount of flour by eye as you knead - there is not a precise measurement for the flour here.


Once you have your ingredients together, you can get started. Just make sure you have some time to spare, because the dough needs time to rise. It is for this reason that I make bread on my days off from work.


The Method


You will need two 9 x 5 inch (23 x 13 cm) loaf pans (makes two loaves).


Start with a large bowl. Tip in 2 lb (900g, roughly 7.5 cups) flour (you decide the type or mix), 0.6 oz (17g, which is about 3/4 tbsp kosher, or maybe 1/2 tbsp fine) salt and 4 tsp instant dry yeast (or about 1.5 oz fresh yeast). Mix in 24 fl oz (700 ml) water, and stir it all together into a rough dough. Tip your dough onto a floured counter.


Now knead the dough - pull it all together, then get your fists into it, turning, punching and rolling it. Don't be shy - the rougher you are with it, the better the end product will be. If it is too sticky (and it will be), add more flour, and keep kneading. Continue to do this until the dough looks shiny and smooth, feels elastic and is a little tacky, but not sticky.



Risen dough

When you reach this point, put the dough back into the bowl (or even better, a large plastic, straight-sided container), and cover with plastic wrap. Let it sit somewhere warm and not drafty, until it has risen to three times its original size. This should take a few hours, but go by size, not time.









Bench scraper
Once risen, tip the dough back onto the floured counter and cut it in half. A bench scraper is ideal for this, and it is one of my favorite (and cheapest) kitchen tools. It can also be used to clean the counter afterwards.













Take each half, and press it out into a roughly 7 x 11 inch (18 x 28 cm) rectangle. Roll into a log from one short side to the other, then drop the log, seam side down, into a buttered loaf pan. Sprinkle the tops of your loaves with a little flour and cover with plastic wrap. Put back in a warm place and allow the dough to rise above the edges of the pans.

Once the dough is risen, preheat your oven to 400 F (200 C). Once hot, put the two loaf pans in the oven (minus the plastic wrap!) and close the door. Bake for 35 minutes, at which point the loaves should be lightly browned on top, and once knocked out of the pans, should sound hollow when tapped on the bottoms. Allow to cool directly on a rack.

What you do next with your bread is up to you. It is best to eat as soon as it has cooled down a little (as the bread is still cooking in the center when you remove it from the oven), but I allow most of it to cool completely, then cut the loaves in half and wrap in parchment paper and freeze. One half remains out, in a sealed plastic bag, or other airtight container, ready for use. It can be left at room temperature for a few days, so long as you keep the air out. Eventually it will mold, so eat it before it does, or freeze it!

Don't keep bread in the refrigerator - it will go stale very quickly. 

If your bread dries out, you can grind it into breadcrumbs in a food processor.

Enjoy the bread that you created!

Half whole-wheat sandwich loaf


Variations

Besides varying the flours in your bread, you can also put 'extras' in or on it. The most common extras would be nuts and seeds, which could go in or be sprinkled on top of the bread. Other options include rolled oats (which can be ground in a food processor) and dried fruit. A friend likes to put cooked millet and sunflower seeds in her bread. I personally love poppy seeds on the outside of mine. This is an opportunity to really personalize your loaf!

You can also substitute some of the water for milk, which will result in softer bread, and, if you like some sweetness, you could add some honey or maple syrup.

Another option is to shape your loaves by hand, for example into long loaves (like baguettes) or round ones (like boules), instead of using loaf pans. If you want to do this, set up a baking sheet with parchment paper on it, and let the shaped loaf or loaves rise on this (instead of in the loaf pan). Preheat the oven and slide the sheet onto the oven shelf.

Half whole-wheat round with poppy seeds
If you like your bread to be airier and crustier, you can bake it in a hotter oven (say 475 F - 250 C), with steam (set up a small cast iron pan in the preheating oven, and toss in a few ice cubes right after you put the bread in). If you are not using loaf pans, you can slide your loaves (on parchment paper) onto a preheated pizza stone. Baking time will depend on oven temperature and loaf size and shape.







Related Posts

The following recipes are from my old blog, An English Cook in America.




References/Further Reading

On Food and Cooking - Harold McGee (Food science)

Local Breads - Daniel Leader with Lauren Chattman (Great book on artisan breads, and bread in general)

The River Cottage Bread Handbook - Daniel Stevens (Great general book on breads, with an excellent final chapter on how to build your own clay bread oven)