1. Pulse flour, sugar, and salt in a food processor to combine. Add butter; process until mixture resembles coarse meal, about 10 seconds. With machine running, add ice water in a slow, steady stream through feed tube until dough just comes together (no longer than 30 seconds).

2. Turn out onto a work surface. Divide in half. Shape into disks. Wrap in plastic. Refrigerate at least 1 hour (up to 2 days).