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What is baking soda used for in cookies?
What's the difference between baking soda and baking powder?
Baking soda is a basic compound that requires an acidic ingredient to react and create carbon dioxide gas. Baking powder, on the other hand, already contains an acidic ingredient, so it can react on its own when it's combined with a liquid. Baking soda is also more powerful than baking powder, so you'll typically need less baking soda than baking powder in a recipe.