1. Lightly beat together yolks and water until combined.

2. Pulse flour, sugar, and a pinch of salt in a food processor until combined. Add butter, and pulse until mixture resembles coarse crumbs with some larger pieces remaining, about 10 seconds. Drizzle yolk mixture over dough mixture. Pulse until mixture just begins to hold together (no longer than 30 seconds).

3. Divide dough in half, and wrap in plastic wrap. Shape dough into disks. Refrigerate until firm, 30 minutes or overnight.