Gluten-Free Biscuits

Details

Ingredients

• 1 ½ cups sorghum flour
• 1 cup millet flour
• ½ cup tapioca starch
• 4 teaspoons baking powder
• 2 teaspoons xanthan gum
• 1 ½ teaspoons baking soda
• 1 ½ teaspoons salt
• ½ cup cold butter
• 1 cup milk
• 1 egg, beaten
• 1 tablespoon cider vinegar
• 2 tablespoons rice flour, or as needed