Basic Pie & Tart Crust

• ½ cup (3¾ oz/110 g) brown rice flour
• ½

In a food processor, pulse the rice flour, sorghum flour, tapioca flour, sugar, xanthan gum, and salt to mix well. Add the butter and pulse until pea-sized lumps form. Add the egg and pulse until blended. If necessary, add the cold water, 1 tablespoon at a time, pulsing just until the dough forms a