Makes enough pastry for one 9-inch or 10-inch two-crust pie or 2 single-crust pies.
3 cups all-purpose flour
1 teaspoon salt
¾ cup butter
¼ cup shortening
½ cup cold water
1 tablespoon white vinegar or lemon juice
Sift together flour and salt in a large bowl. Blend in butter and shortening until the mixture resembles coarse breadcrumbs.
Combine water and vinegar or lemon juice in a measuring jug. Sprinkle the liquid over the flour mixture. Using your fingers, work the liquid in and gather the dough into a ball. Divide the dough into two equal pieces.
Roll out as needed or wrap the dough in plastic wrap and chill.