I was baking something and noticed that I was running out of baking powder and I had read that you can make your own. A quick internet search led me to a recipe. I increased the quantity by using ratios (math lesson!) and came up with the following recipe:
·1 T baking soda
·2 T cream of tartar
·1 T cornstarch
Mix all ingredients together using a mini whisk until well combined. Store in a plastic container.
I think it's much cheaper and it contains no aluminum! Happy baking!