So, what about baking powder? It's actually a mixture of baking soda and an acid (usually cream of tartar) that's designed to release gas more slowly over time. This makes it perfect for recipes that don't contain an acid, like cakes or cookies. But can you use it as a substitute for baking soda in a recipe?
The short answer is, it's not recommended. Baking powder has a different chemical composition than baking soda, and using it as a substitute can affect the texture and flavor of your final product. It's like trying to swap out a basketball for a soccer ball - they might look similar, but they're designed for different games!
But why is that, exactly? Well, when you use baking powder in a recipe that calls for baking soda, you're essentially adding an extra ingredient (the acid) that can throw off the balance of the recipe. It's like adding an extra musician to a band - it might sound okay at first, but eventually, it's going to get out of tune!
Baking Powder Substitute at Julia Belcher blog