If you’re truly grain free, baking powder presents a bit of a problem. I haven’t yet found a commercial baking powder that doesn’t have corn starch in it. Now, maybe you’re eating a grain free diet, and you don’t care about the teeny tiny amount of corn starch in baking powder, when you’re using only a teaspoon of it in your entire recipe. If you do worry about that amount of grain, you might need to know how to make your own baking powder.

Homemade Baking Powder

• 1/4 teaspoon (1.25 grams) baking soda,
• 1/2 teaspoon cream of tartar 
• 1/4 teaspoon of starch, such as potato or tapioca starch 

Since homemade baking powder immediately releases its carbon dioxide gas when it is added and then moistened by the batter, it is important to bake the batter right away.

This recipe for baking powder comes from JoyofBaking.com, except that I changed the corn starch to a grain free starch. Thank you, JoyofBaking.com!