Ingredients

• 1/2 cup powdered milk
• 2 cups rice flour
• 1 cup potato starch
• 2/3 cup tapioca flour
• 1/2 cup gluten-free infant rice cereal
• 3 tablespoons powdered egg whites
• 2 tablespoons white sugar
• 1 tablespoon baking powder
• 1/4 teaspoon cream of tartar
• 1/4 teaspoon ascorbic acid
• 3/4 cup butter

Instructions

1. Grind the powdered milk until fine.
2. Combine rice flour, potato starch, tapioca flour, powdered milk, rice cereal, powdered egg whites, sugar, baking powder, cream of tatar, and ascorbic acid together in a bowl; mix with an electric mixer. Add butter and mix until well combined. Transfer to an airtight container; store in the refrigerator.