Step 2
Whisk tapioca flour, brown rice flour, white rice flour, sorghum flour, baking powder, baking soda, salt, cinnamon, cloves, ginger, and nutmeg in a bowl until thoroughly combined. Mix pumpkin, eggs, brown sugar, milk, and 1/4 cup melted butter in a separate bowl; beat for 2 minutes. Gradually mix dry ingredients into pumpkin mixture to make a smooth batter; scoop batter into the prepared muffin cups, filling them 3/4 full.