When measuring flour, don't densely pack measuring cups. Instead, spoon flour from a master batch into a measuring cup, and use a straight edge to level.

• 1 1/4 cups brown rice flour
• 3/4 cup sorghum flour
• 2/3 cup cornstarch
• 1/4 cup potato starch
• 1 tbsp + 1 tsp potato flour
• 1 tsp xanthan gum

We often make a quadruple batch and store it in an airtight container in the refrigerator. Those measurements are:

• 5 cups brown rice flour
• 3 cups sorghum flour
• 2 2/3 cups cornstarch
• 1 cup potato starch
• 1/4 cup + 4 tsp potato flour
• 1 tbsp + 1 tsp xanthan gum