The recipe that I’m following here is for a double-crust savory pie (“Corey’s Homemade Chicken Potpie”, p. 195 in Flour, too); the procedure is the same as for her “Pâte Brisée II” used for most of the sweet pies in Flour. (Note that I’m now using Amazon affiliate links; if you click on them and then buy something, I might make a few cents. The links are provided as a convenience; these books are also available from other online booksellers as well as your local independent bookstore — and in this case also directly at all four Flour Bakery-Cafe locations.)

Every pastry dough starts with some sort of fat, and the best pastry dough is made with the best quality butter. Always use unsalted butter, and always store your unsalted butter in the freezer until a day or two before you plan on using it. Many people like to bake with European-style butters, which have a higher fat-to-water ratio and are made from cultured, rather than sweet, cream, but in this case I’ve used standard American sweet cream butter. For the benefit of non-Americans: butter throughout the United States is sold in packages with a standardized mass and volume. In almost all cases, butter comes in a one-pound (about 450 g) package, which contains four quarter-pound (about 113 g) “sticks”, which are deemed to have a volume of eight tablespoons, or ½ cup, each. (Note that there are two different shapes of butter sticks, roughly corresponding to dairies east and west of the Rocky Mountains. The photo above shows the long, thin sticks characteristic of eastern butter — I use Kate’s butter from Maine — whereas western butter is shorter but wider.) American recipes may give butter quantities by mass (in fractional pounds or ounces) or by volume (in fractional cups or tablespoons) interchangeably. Even though butter is less dense than water, for culinary purposes they are generally assumed to be equal, within the margin of measurement error, so 2 tablespoons (30 mL) is interchangeable with 1 ounce (just under 30 g). In this recipe, Chang calls for 1 cup or 225 g of butter, which is ½ lb or two sticks.

The recipe calls for the butter to be cut into twelve pieces, so I cut each stick into thirds with a knife, and then split each chunk in half. When butter is cold and stiff like this, the crystals of milkfat often stick together and to the knife blade, leaving jagged and uneven pieces; for the purposes of this recipe that’s OK. I’ve tried using a cheese knife, a cheese wire, a bench scraper, a cleaver, and pretty much every knife at my disposal, and they all make a bit of a mess when cutting butter. The quantity is not so exact that it matters if a few grams of butter are left clinging to the knife or the cutting board.

I put all of the butter on top of the foil wrapper one of the sticks came in, and put the whole mess in the refrigerator — when making most kinds of pastry, it is vital that the butter or other fat start out cold, and remain cold, for the entire preparation. (Some people go so far as to put all of the ingredients and equipment into the fridge to chill it; I don’t see any need for that.) While the butter is re-chilling, I measure out the rest of the ingredients.

What I’m about to say is going to sound weird to many non-American cooks, and you should feel free to skip this bit. Americans: do not use volumetric measurements for flour. Ever. Of all the ingredients in your kitchen, flour is the most difficult and least consistent to measure by volume. Get a kitchen scale. They’re not expensive (this one is a nicer, newer version of the one shown in the photo above, and costs only $35), and everyone should have one in their kitchen, not just for baking but also for general portion control — nothing beats a scale for ensuring that all of the portions of some food item are the same size and will therefore be completely cooked at the same time. It’s also just plain easier to measure all sorts of dry ingredients on the scale. The recipe calls for 245 grams of all-purpose flour; in the ingredient notes at the front of the cookbook, Chang recommends King Arthur, which has a higher protein content than most other unbleached all-purpose flours. (I use King Arthur’s organic version — it’s cheaper in the grocery store than from my Amazon link.) You can probably substitute pastry flour, a lower-protein pastry blend, or southern-style soft (not self-rising) flour, but expect a more tender, crumbly crust. (For reference: if you are using a recipe that unaccountably does not give flour by mass, just remember that one cup of flour weighs about 5 ounces or 140 g.)

The recipe would have you measure the flour directly into your mixer’s work bowl. My mixer’s glass bowl is too heavy for my kitchen scale, so I use the setup shown above, with a small Pyrex mixing bowl and a mesh strainer (to break up any lumps). I read ahead in the recipe and found that the salt (1 teaspoon kosher salt) and sugar (1 tablespoon plain white granulated sugar) are added directly to the flour, so I put them in at this stage so I can use the strainer to remove clumps from those ingredients, too. I use a wire whisk to mix all the dry ingredients together before putting them in the mixer.

Continuing the ingredient preparation (known to chefs as “mise“, short for the French phrase “mise en place“, “putting in place”), Chang’s pastry is enriched with milk and egg yolk. A proper chef would crack two eggs into a bowl, then reach in with his or her hand and pull out the yolks by hand; I find the slightest touch of slimy albumin (egg white) on my hands to be utterly revolting, so I use a mechanical egg separator. Many home cooks use the cracked shell itself to separate eggs, and there’s nothing wrong with that; I just prefer the plastic device. (It does require a bit of tapping and a bit of waiting for the viscous albumin to fall away into the cup. I can never remember whether cold or room-temperature eggs are supposed to separate more easily, and normal conditions for egg storage vary from country to country. In North America, eggs are washed at the source and so must be refrigerated to control bacteria.)

A good quality egg yolk should look bright yellow and stand proud just like these. (I use Country Hen brand organic eggs, but pretty much any fresh, quality egg is fine — but I would avoid eggs from high-volume factory farms just on general principle.) For many recipes, I would be keeping the egg whites — either to glaze the pie crust, or to put into a meringue — but in this case I don’t have any immediate need for them, so they’ll just get thrown out. (Egg whites can be frozen for future use, but I never remember to thaw them in time and end up throwing them out six months later, which rather defeats the purpose of freezing them!) As you can see in this photo, I missed a little bit of the egg white in the separator, but it’s not enough to make a difference in this recipe. (In some recipes that call for much larger quantities of egg it would matter.) I’ll let the egg yolks sit for a while until I’m ready for them.

I put the dry ingredients in the mixing bowl (Kitchen-Aid Pro 600 Design Series, but any stand mixer with a paddle attachment will do) and dropped the butter, fresh from the refrigerator, piece by piece on top.

The butter is “cut into” the flour using the paddle blade for about a minute and a half.

As the flour particles get coated with butter, the color of the flour darkens and becomes yellowish (depending on how yellow your butter is).

Chang says that when the first mixing stage is done, “lumps of butter the size of pecans” should remain. I might have gone a little bit too far here, but I think it’s close enough. Now it’s time to add 3 tablespoons (45 mL) of milk to the egg yolks and beat with a whisk until thoroughly combined:

The egg-and-milk mixture is then added, all at once, to the flour-butter mixture and mixed on low speed to combine:

Chang says to mix for not more than 20–30 seconds. There are two reasons for this: first, we’ve added a lot of water to a mixture that was mostly flour, which causes gluten development; too much agitation will overdevelop the gluten and result in a tough crust. Second, over-mixing will further break up the clumps of butter, and we want those clumps for the next stage in the process.

As the recipe says, when it’s mixed enough the dough will “look really shaggy … like a mess”. This “mess” is turned out onto a clean work surface — I prefer to use my pastry mat — and formed into a mound of dough. (There’s enough liquid in the dough that it should just press together.)

The next step helps to create the flaky final texture of the pastry.

Using the palm of one hand, I push down and slide the dough mound away from the center, smearing the remaining lumps of butter into long, thin flakes. Important: this is not kneading the dough. We are not trying to develop gluten structure here, we just want to flatten out the chunks of butter that will separate the flakes of dough in the final pastry after baking (think “croissant”, not “bread”). I use a bench scraper to pull the dough off the mat and form it back into a ball.

After this smearing process, the dough should form a cohesive ball. At this point I looked ahead in the directions, and found that the dough will be divided in two. I find it easier to do this before resting the dough, so I took the scale back out:

Chang says that the first piece of the pastry should weigh twice as much as the second; by simple arithmetic that means the dough should be divided into pieces weighing one third and two thirds of the total, respectively.

The recipe so far has made about 540 grams of dough, so that means the small piece should be 180 g and the large piece should be 360 g (convenient — things don’t usually work out quite so neatly).

Each dough portion is flattened into a disc, wrapped tightly in plastic, and put in the refrigerator for at least an hour (longer is better). The “rest” in the refrigerator serves two purposes: first, any butterfat that has melted during the preparation can resolidify, which is important to keep the pastry flaky after rolling; and second, the liquid we added — via the eggs and milk — needs time to penetrate all of the flour particles evenly, so that there are no dry spots when we roll it out, which would lead to cracks in the crust and make handling much more difficult.

I’ll continue with the actual rolling, shaping, and blind baking of the dough when I post about the pot-pie recipe itself, probably on Sunday evening or Monday; likewise for the nutrition information. Total preparation time to this stage: less than 15 minutes including ingredient measurement.