1 1/3 cups all-purpose flour
8 ounces cold butter, cut into small pieces
1 teaspoon salt (less if using salted butter)
1 tablespoon granulated sugar (optional)
1/4 cup ice water
Use the steel blade of food processor. Put all ingredients except ice water into work bowl. Process until mixture has consistency of coarse meal (5 to 10 seconds).
With machine running, pour ice water through feed tube in a steady stream. Stop processing as soon as dough forms ball to ensure tender, flaky pastry. This may be used immediately or frozen for later use.