MAKES 12 (I got 9 when I halved it!)
“You can substitute 1¾ cups regular buttermilk or soured milk for the milk and powdered buttermilk; however, the biscuits will be less flavorful. Baking the biscuits upside down ensures a more even rise.”
3¾ cups (18¾ ounces) all-purpose flour
½ cup powdered buttermilk
2 tablespoons sugar
4 teaspoons baking powder
1½ teaspoons salt
1 teaspoon baking soda
12 tablespoons (1½ sticks) unsalted butter, cut into ½-inch pieces and chilled
4 tablespoons vegetable shortening, chilled and cut into ½-inch pieces
1¼ cups whole milk
1.Adjust an oven rack to the middle position and heat the oven to 450 degrees. Line a baking sheet with parchment paper.
2.Pulse the flour, buttermilk powder, sugar, baking powder, salt, and baking soda together in a food processor to combine, about 3 pulses.Scatter the butter and shortening evenly over the top, and continue to pulse until the mixture resembles coarse meal, about 15 pulses.
3.Transfer the flour mixture to a large bowl. Stir in the milk with a rubber spatula until the dough comes together. Turn the dough out ontoa well-floured surface. Lightly flour your hands and the dough, and knead the dough gently until uniform, about 30 seconds. Roll the dough intoa 10-inch round, about 1 inch thick.
4.Using a floured 2½-inch biscuit cutter, stamp out 12 biscuits, gently patting the dough scraps back into a uniform, 1-inch-thick piece as needed.Arrange the biscuits upside down on the prepared baking sheet, spaced about 1½ inches apart.
5.Bake for 5 minutes. Rotate the pan, reduce the oven temperature to 400 degrees, and continue to bake until golden brown, 12 to 15 minutes (Mine were done at 10). Transfer to a wire rack, let cool for 5 minutes, and serve warm.
To Make Ahead
The cut, unbaked biscuits can be covered and refrigerated for up to 24 hours; bake as directed. (They do not freeze well.)
“After lots of testing and tasting, we concluded that the best buttermilk biscuits are made with buttermilk powder. Not only does the buttermilk powder produce biscuits with a slightly finer, fluffier texture, but we can add as much of the powder as we want to the dough for maximum buttermilk tang with no textural side effects. When using liquid buttermilk, on the other hand, you can only add as much as the dough can handle; using too much liquid will turn the dough into a batter.” -THE AMERICA’S TEST KITCHEN FAMILY BAKING BOOK

