Shortbread Crust

Bahan-bahan (12 porsi)

• 6 tablespoons unsalted butter (at room temperature)
• ¾ cup all-purpose flour
• ½ cup white whole wheat flour (or additional all-purpose flour)
• ⅓ cup powdered sugar
• ¼ teaspoon kosher salt
• 1 teaspoon pure vanilla extract
• 1 tablespoon water