Basic Pie Pastry

For a single-crust pie

• 1½ cups (7½ oz/235 g) all-purpose (plain) flour

Combine the flour, salt, and shortening in the work bowl of a food processor. Process with 15 rapid off-on pulses; the mixture should be light and dry and resemble tiny flakes. Add 2 Tbsp water (4 Tbsp f