Go-To Pie Dough from Ken Haedrich
Author: 
Makes: MAKES ENOUGH FOR 1 (9 ½-INCH) PIE OR TART SHELL
 
Ingredients
  • 8 tablespoons (1 stick) cold unsalted butter plus 2 tablespoons cold vegetable shortening (or 10 tablespoons cold unsalted butter), cut into ½-inch cubes
  • 1½ cups all-purpose flour
  • 1½ teaspoons cornstarch
  • ½ teaspoon salt
  • 2 teaspoons white vinegar
  • Scant ⅓ cup cold water
Instructions
  1. Put the butter and shortening cubes in a single layer on a flour-dusted plate, with the shortening off to one side of the plate by itself. Refrigerate for at least 30 minutes. Combine the flour, cornstarch, and salt in a bowl and refrigerate that mixture also. Pour the vinegar into a 1-cup glass measure. Add enough cold water to equal ⅓ cup liquid. Refrigerate.
  2. When you’re ready to mix the pastry, transfer the flour mixture to a food processor. Pulse several times to mix. Remove the lid and scatter about 6 tablespoons of the butter—a little more than half of the total fat— over the dry mixture. Pulse the machine five times—that’s five 1-second pulses—followed by an uninterrupted 5-second run. Remove the lid and add the remaining fat. Give the machine six or seven 1-second pulses.
  3. Remove the lid and loosen the mixture with a big fork; you’ll have a range of fat clods, most quite small but a few larger ones as well. With the lid off, drizzle about half of the liquid over the mixture. Replace the lid and give the machine three very quick, half-second pulses. Remove the lid, loosen the mixture with your fork, and add the rest of the liquid. Pulse briefly three or four times, just like before. The mixture will still look crumbly, but the crumbs will be starting to get a little clumpier.
  4. Transfer the contents of your processor to a large bowl, one large enough to get your hands in. Start rubbing the crumbs together, as if you were making a streusel topping—what you’re doing is redistributing the butter and moisture without overworking the dough. (Note: If your dough mixture came out of the food processor more clumpy than crumb-like, don’t worry. Just pack it together like a snowball, knead it very gently two or three times, and proceed to step 5.) You can accomplish the same thing by “smearing” the crumbs down the sides of the bowl with your fingers. When the dough starts to gather in large clumps, pack it like a snowball and knead gently, three or four times, on a lightly floured surface.
  5. Put the dough on a long piece of plastic wrap and flatten it into a 1-inch-thick disk. Wrap tightly in plastic wrap and refrigerate for at least 1½ to 2 hours; overnight is fine. (You can also slip the wrapped dough into a gallon-size plastic freezer bag and freeze it for up to 2 months. Thaw overnight in the refrigerator before using.)
Recipe by Bakepedia at https://www.bakepedia.com/go-to-pie-dough-from-ken-haedrich/