Baking powder is a mixture of baking soda and a dry acid, such as cream of tartar, and perhaps some cornstarch to help keep ...

Many recipes call for baking powder, but who bakes enough to use a whole can before it expires? In fact, I learned the hard ...

Though substituting baking powder for baking soda isn’t widely recommended, you may be able to make it work in a pinch. Swapping baking powder for baking soda won’t require additional ingredients.

For baking powder, put three tablespoons of warm water in a bowl, then stir in ½ tsp of baking powder. If the mixture fizzes, that means it is still good.

Because it is pure bicarbonate of soda, a teaspoon of baking soda is 3 to 4 times stronger than a teaspoon of baking powder. So, to substitute effectively, you will have to do some math.

You can substitute 1/4 cup (84 grams) molasses and 1/4 teaspoon (1 gram) baking soda for 1 teaspoon (5 grams) baking powder. Reduce the other liquids and sugar in your recipe to compensate. 4.

If a recipe calls for 1 teaspoon of baking soda, you'll want to substitute with 2 to 3 teaspoons of baking powder. Just make sure your baking powder is still effective and not past its use-by date.