Substitutions

What can I use instead of baking powder?

A complete chemical leavener: an alkali (baking soda), a dry acid, and a starch buffer, packaged together so it only needs moisture and heat to work.

What it does in a recipe: Self-contained lift — it brings its own acid, so the recipe does not have to. Pick the swap that covers that job — the ratios below are written so you can act on them without doing any arithmetic.

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Baking staplescategory

Quick answer

Baking soda + cream of tartar

1 tsp baking powder = 1/4 tsp baking soda + 1/2 tsp cream of tartar

All substitutes, best first

3 ways to replace baking powder

Baking soda + cream of tartar

Closest match

1 tsp baking powder = 1/4 tsp baking soda + 1/2 tsp cream of tartar

This is what baking powder is. Cream of tartar is the dry acid that neutralises the soda and releases carbon dioxide, and the proportions are the same ones the commercial product uses.

MethodMix it fresh and get the batter into the oven promptly. Unlike commercial double-acting powder, this reacts once, immediately on contact with liquid.

Trade-offSingle-acting, so a batter left sitting on the counter will lose its lift. Not a problem if you bake straight away.

BakingVeganVegetarianGluten-freeDairy-freeEgg-freeNut-freeSoy-free

Baking soda + buttermilk

Reliable

1 tsp baking powder = 1/4 tsp baking soda + 1/2 cup buttermilk (remove 1/2 cup of the recipe's other liquid)

Buttermilk's lactic acid does the same neutralising job as cream of tartar. The catch is that it arrives as a liquid, so the recipe's hydration has to be rebalanced.

Trade-offAdds a pleasant tang and a softer crumb. Only workable where the recipe has liquid to spare.

BakingVegetarianGluten-freeEgg-freeNut-freeSoy-free

Baking soda + lemon juice or vinegar

Reliable

1 tsp baking powder = 1/4 tsp baking soda + 1/2 tsp lemon juice or white vinegar

Any food acid will neutralise the soda; lemon and vinegar are simply the ones every kitchen has.

MethodAdd the acid last, stir briefly, and bake immediately — the reaction begins on contact and does not wait.

Trade-offVinegar can leave a faint sharpness in a delicately flavoured cake.

BakingVeganVegetarianGluten-freeDairy-freeEgg-freeNut-freeSoy-free

Worth knowing

Baking powder loses potency within about six months of opening. Test it by dropping half a teaspoon into hot water — if it does not fizz vigorously, it will not raise your cake either.

At a glance

Baking powder in summary

Category	Baking staples
Job in a recipe	Self-contained lift — it brings its own acid, so the recipe does not have to
Suits	Vegan, Vegetarian, Gluten-free, Dairy-free, Egg-free, Nut-free, Soy-free
Swaps available for	Dairy-free Egg-free Gluten-free Nut-free Soy-free Vegan Vegetarian
Number of substitutes	3

More baking staples

Active dry yeast3 substitutes Baking soda3 substitutes Cocoa powder (natural)3 substitutes Dutch-process cocoa powder2 substitutes Espresso powder2 substitutes Instant yeast2 substitutes

Cooking around an allergy? Diet tags here describe the ingredient itself, not any particular brand. Processed products change formulation without notice and shared production lines are common, so read the label on everything you use. A severe allergy is a medical matter — confirm with the manufacturer or your clinician rather than relying on a substitution chart.