Ingredients

1 cup white rice flour
1/2 cup tapioca starch
1/2 cup potato starch
1 teaspoon xanthan gum
3/4 teaspoon baking soda
3/4 teaspoon salt
16 tablespoons (two sticks) frozen unsalted butter, grated
1/2 cup cold water
1 egg, for an

Cooking Instructions

1. Add white rice flour, tapioca starch, potato starch, xanthan gum, baking soda, and salt to a large mixing bowl. stir until combined.
2. Grate cold butter into the flour mixture, stirring and coating the butter pieces as you go. You can also use a pastry blender and cut the butter pieces into the flour.
3. Once the butter pieces are the size of peas, make a well in the center and add the cold water. Use your hands to work the dough together and into a ball.
4. Chill for up to 2 hours.
5. Remove the dough from the refrigerator and let it sit for 20 minutes. Pre-heat your oven to 400