Use this no-fail tart crust whenever you're craving a flaky pastry. You can dress it up for the different seasons by sprinkling it with cheese, herbs, nuts, or spices.
Preheat oven to 450°F. (For nonstick pans preheat oven according to instructions on package.) In a food processor pulse flour, butter, and salt 10 to 20 seconds or until mixture looks like fine crumbs. Do not overprocess.
In a small bowl whisk together yolks and the water. With processor running, add yolk mixture. Stop as soon as dough just starts to come together, about 5 seconds.
Crumble to distribute evenly in an 11×8-inch rectangular tart pan or 11-inch round pan with removable bottom; press into pan. (Or gather dough into a ball; flatten. Roll out dough between two pieces of parchment paper into a 12×9-inch rectangle. Transfer dough to pan. Press into corners; trim excess.)
Using a fork, prick dough all over. Line pastry with a double thickness of foil. Bake 12 minutes. Reduce temperature to 350°F. Remove foil. Bake 8 minutes more or until pastry is golden. Let cool completely. Use baked crust to prepare seasonal tarts.