Tart Dough

• 1¼ cups all-purpose flour
• ¼ cup sugar
• ¼ teaspoon

In a food processor, combine the flour, sugar, and salt and pulse briefly to mix. Scatter the butter over the top and pulse until the mixture becomes crumbly and resembles coarse cornmeal, with butter pieces no larger than small peas. In a small bowl, whisk together the egg yolk, water, and vanilla. Add the egg mixture to the processor and pulse just until the dough is no longer dry and begins