Whether you’re a seasoned pro or just starting your baking journey, there’s a good chance you’ll eventually find yourself without baking soda—or realize that the box in your pantry has expired. In ...

Alternatively, you could try one of several other substitutes for baking soda. If your recipe calls for baking powder and all you have at hand is baking soda, you may be able to substitute ...

You cannot directly substitute one for the other. Instead, you have to make sure to modify the amounts and possibly add new ingredients when you swap baking soda for baking powder or vice versa.