Step 1

Pulse flour, salt, and sugar in a food processor until combined. Add butter and pulse until mixture resembles coarse meal with some pea-size pieces remaining. Drizzle 5 tablespoons water over mixture; pulse several times to combine. Add more water, 1 tablespoon at a time, and pulse until mixture holds together when pinched.

Step 2

For a 9-inch pie, shape dough into two disks and wrap each in plastic. For a slab pie, shape dough into a rectangle and wrap in plastic. Refrigerate at least 1 hour and up to 1 day, or freeze up to 3 months; thaw overnight in refrigerator before using.