The fastest substitutes for baking powder

If you open your baking cabinet and find an empty baking powder tin, you have three working substitutes that will rise your cake or quick bread: baking soda plus acid, self-rising flour, or whipped egg whites. The first two work in almost any recipe. Whipped egg whites work best for cakes and soufflés where you want lift without chemical leavening.

The most common swap is baking soda mixed with an acid. Use one-third teaspoon of baking soda plus two-thirds teaspoon of cream of tartar (or lemon juice, or vinegar) to replace one teaspoon of baking powder. The acid reacts with the baking soda when ready, so mix your dry ingredients and wet ingredients separately, then combine them right before baking—do not let the batter sit.

Self-rising flour is a shortcut if you have it on hand. It already contains baking powder and salt mixed in. Measure it one-to-one for regular flour in the recipe, but reduce the baking powder called for to zero and cut the salt by half a teaspoon per cup of flour you are using.

Key Takeaways

  • Mix one-third teaspoon of baking soda with two-thirds teaspoon of cream of tartar to replace one teaspoon of baking powder, and combine wet and dry ingredients right before baking.
  • Baking soda alone will not work without an acid present in your recipe—check for buttermilk, yogurt, lemon juice, vinegar, or brown sugar before trying this route.
  • Self-rising flour replaces regular flour one-to-one but requires you to skip the baking powder and reduce salt in the recipe.
  • Whipped egg whites create lift through air rather than chemical reaction, so they work best in cakes, angel food cakes, and soufflés where structure comes from eggs.

Baking soda and acid: the most reliable swap

Baking soda needs an acid to work. On its own, it will not rise your batter. The acid triggers a chemical reaction that produces carbon dioxide bubbles, which is what makes your baked good rise. Common acids in your kitchen are cream of tartar, lemon juice, vinegar, buttermilk, yogurt, and brown sugar.

The ratio is one-third teaspoon baking soda to two-thirds teaspoon acid per one teaspoon of baking powder. If your recipe calls for two teaspoons of baking powder, use two-thirds teaspoon baking soda and one and one-third teaspoons of acid. Measure carefully—too much baking soda leaves a soapy taste, and too much acid makes the batter taste bitter.

The timing matters. Mix your dry ingredients together first, then mix your wet ingredients in a separate bowl. Combine them just before you pour the batter into the pan. If you let the batter sit for more than a few minutes, the bubbles escape and your cake will be dense. Baking powder has two sets of bubbles—one that forms when wet, and one that forms in the oven heat—but baking soda releases all its bubbles at once.

When your recipe already has an acid

Check your ingredient list before you buy cream of tartar. If your recipe calls for buttermilk, sour cream, yogurt, lemon juice, vinegar, or brown sugar, you already have the acid you need. In this case, use one-quarter teaspoon of baking soda per one teaspoon of baking powder the recipe calls for, with no additional acid.

This works because the acid is already in the wet ingredients. The baking soda will react with it during mixing. You use less baking soda this way because you are not adding extra acid—the recipe provides it. If you add both the acid from the recipe and extra acid from cream of tartar, your baked good will taste sour.

Read the full ingredient list, not just the leavening section. Chocolate, cocoa powder, and molasses are also slightly acidic, so they count. If you are unsure whether something is acidic, use the full ratio (one-third teaspoon baking soda plus two-thirds teaspoon cream of tartar) rather than guessing.

Self-rising flour as a one-ingredient fix

Self-rising flour is wheat flour with baking powder and salt already mixed in. One cup of self-rising flour contains about one and one-half teaspoons of baking powder and one-half teaspoon of salt. If you have a bag in your pantry, you can use it to replace regular flour in most recipes.

The swap is straightforward: use self-rising flour one-to-one for regular flour, then remove the baking powder from the recipe entirely and reduce the salt by one-half teaspoon per cup of flour. For example, if a recipe calls for two cups of all-purpose flour, one and one-half teaspoons of baking powder, and one teaspoon of salt, use two cups of self-rising flour, zero teaspoons of baking powder, and one-half teaspoon of salt.

This works best in quick breads, biscuits, and straightforward cakes. Recipes that rely on precise ratios of acid and base (like soda bread or devil's food cake) may not turn out the same way because you cannot control the baking powder amount as finely. If the recipe is very acidic, you may end up with too much baking soda relative to acid.

Whipped egg whites for cakes and soufflés

Whipped egg whites create lift through air, not through a chemical reaction. When you beat egg whites, you trap tiny air bubbles in the protein structure. Heat sets those bubbles in place, and your cake rises. This method works well for angel food cakes, chiffon cakes, soufflés, and mousse-based desserts.

Separate your eggs carefully—even a speck of yolk will prevent the whites from whipping to stiff peaks. Use a clean, dry bowl and beaters. Whip the whites until they form stiff peaks that stand upright when you lift the beaters. Fold them gently into your batter at the very end, using a rubber spatula and moving from the bottom of the bowl upward. Overmixing deflates the bubbles and defeats the purpose.

This method does not work for dense cakes, cookies, or recipes where you need a fine crumb. It also does not work if your recipe is very thick or contains a lot of fat, because fat coats the air bubbles and prevents them from expanding in the oven. Use whipped egg whites only in recipes designed for them or in very light, airy batters.

Common mistakes when substituting

The biggest mistake is using baking soda alone without checking for acid in the recipe. Baking soda by itself will not rise your batter and will leave a soapy taste. Always pair it with an acid, either from the recipe or from cream of tartar, lemon juice, or vinegar.

The second mistake is letting the batter sit after mixing baking soda and acid. The reaction happens when ready, and the bubbles escape into the air rather than into your baked good. Mix your dry and wet ingredients separately, combine them, and pour into the pan within a minute or two.

The third mistake is using too much baking soda. A little goes a long way. If you use more than one-quarter teaspoon per cup of flour, your baked good will taste soapy or metallic. Measure with a spoon, not your fingers, and level it off with a knife.

Substitutes that do not work

Yeast is not a substitute for baking powder. Yeast is a living organism that ferments and produces bubbles over hours or days. Baking powder produces bubbles when ready. If you use yeast instead of baking powder, your cake will taste like bread and will take all day to rise.

Cornstarch is not a substitute either. Cornstarch is sometimes mixed into baking powder to keep it dry, but cornstarch alone does not create any lift. It will thicken your batter but will not make it rise.

Baking soda without acid will not work. It needs the chemical reaction to produce bubbles. Using baking soda alone will result in a dense, flat baked good with a soapy aftertaste.

Frequently Asked Questions

Can I use baking soda alone if my recipe has vinegar in it?

Yes. Vinegar is acidic, so it will react with baking soda. Use one-quarter teaspoon of baking soda per one teaspoon of baking powder the recipe calls for. Do not add extra acid—the vinegar in the recipe is enough.

What if I do not have cream of tartar?

Use lemon juice or white vinegar instead. The ratio is the same: two-thirds teaspoon of lemon juice or vinegar per one-third teaspoon of baking soda. Lemon juice and vinegar are liquids, so you may need to reduce another liquid in the recipe slightly to keep the batter the right consistency.

Does self-rising flour work in cookies?

It can, but the results are often too cakey. Self-rising flour contains salt and baking powder, which make cookies rise more than they normally would. Use it only if the recipe was written for self-rising flour. For regular cookie recipes, stick with the baking soda and acid method.

How much baking soda do I use if my recipe has brown sugar?

Brown sugar is slightly acidic, so use one-quarter teaspoon of baking soda per one teaspoon of baking powder. You do not need to add cream of tartar or lemon juice. The brown sugar provides the acid you need.

Can I make my own baking powder?

Yes. Mix one-quarter teaspoon of baking soda with one-half teaspoon of cream of tartar and one-quarter teaspoon of cornstarch. This makes one teaspoon of baking powder. The cornstarch absorbs moisture and keeps the mixture dry. Store it in an airtight container and use it within a few months.