My sister told me she needed to run to the store for baking powder so it reminded me to tell her she can make her own. It’s stuff I usually have on hand anyway and it’s better for you. Most commercially-produced baking powder contain aluminum–sodium aluminum sulfate. Make your own and keep your baked goods aluminum-free.
1 tsp baking soda
2 tsp cream of tartar
1 tsp corn starch (optional – if storing)
To use right away:
Mix the baking soda and cream of tartar together until well combined.
Yield: One tablespoon of baking powder.
To store: Add a teaspoon of corn starch to the mixture, and stir. This will absorb any moisture from the air, and prevent the baking powder from reacting before you need it. Store in an air-tight container.