What can I substitute for baking powder?
Baking powder is a leavening ingredient‚ it helps cakes, cookies, and other baked goods to rise. When baking powder is combined with certain acidic ingredients like buttermilk or yogurt, little bubbles of carbon dioxide form. Those bubbles, dispersed through the batter, cause it to rise‚ and give that light, airy texture we so often want.
If you don't have baking powder, combine 1/2 teaspoon cream of tartar plus 1/4 teaspoon baking soda for every 1 teaspoon of baking powder.