Why You Need a Baking Powder Substitute
We've all been there. You're halfway through mixing a batch of cookies or a fluffy cake, and you realize the baking powder container is completely empty. Don't worry! You don't need to drop everything and run to the store. With a little kitchen chemistry and our handy calculator, you can easily create the perfect substitute using ingredients you likely already have in your pantry.
Baking powder is simply a mixture of baking soda (a base) and a dry acid. When mixed with liquid, they react to create those tiny bubbles that make your baked goods rise. By creating this mix yourself, you can save your recipe.
How This Calculator Works
Our calculator takes the guesswork out of kitchen math. Just type in how much baking powder your recipe calls for, select which acidic ingredient you have on hand, and let the tool do the heavy lifting.
The golden rule for replacing baking powder is simple: for every 1 teaspoon of baking powder, you need ¼ teaspoon of baking soda plus an acidic ingredient. The amount of that acidic ingredient varies depending on what you use, which is why we built this tool.
Common Acids You Can Use
- Cream of Tartar: This is the absolute best substitute because it's a dry powder. Mix ½ teaspoon of cream of tartar with ¼ teaspoon of baking soda to replace 1 teaspoon of baking powder.
- Lemon Juice or White Vinegar: These quick kitchen staples work great. You'll need 1 teaspoon of either liquid to react with your baking soda.
- Buttermilk, Plain Yogurt, or Sour Milk: These dairy options add a nice tang and moisture. Use ½ cup mixed with ¼ teaspoon of baking soda.
- Molasses: Perfect for gingerbread or dark cakes. Use ¼ cup for every ¼ teaspoon of baking soda.
What About the Cornstarch?
You might notice a checkbox for cornstarch in our calculator. Commercial baking powder includes cornstarch to keep the mixture dry and prevent clumping. If you are mixing a batch to store for later, adding cornstarch is a must. If you are throwing the ingredients straight into the mixing bowl to bake right away, you can skip the cornstarch entirely! Though, if your recipe depends on precise dry volume measurements, an ingredient converter might come in handy.
Watch Your Liquids
If you choose to use a liquid acid like buttermilk, yogurt, or molasses, you are adding extra moisture to your batter. To keep your recipe balanced, you'll need to remove some of the other liquids (like milk or water) from your recipe. Our calculator automatically tells you exactly how much liquid to hold back. If you are resizing your whole batter, our recipe resizer makes it easy to adjust all your other ingredients to match.
More Helpful Kitchen Tools
Baking is a science, and getting the numbers right makes all the difference. Whether you need to figure out the right temperature with a baking calculator, swap out your tins using a baking pan converter, or quickly switch cups to grams with our measurement converter, we've got you covered.
And if you're feeling adventurous and want to try baking in a different appliance or need help timing your meals, check out our cooking time calculator or our guide on converting from oven to air fryer to rethink how you make your favorite treats!