Baking Powder Substitutes
Baking powder is just baking soda plus an acid. If you have baking soda and an acidic ingredient, you can mix your own.
Best all-round substitute for baking powder: Baking soda + cream of tartar — use 1/4 tsp soda + 1/2 tsp cream of tartar = 1 tsp baking powder. Mix and use immediately.
Baking Powder substitutes & ratios
| Substitute | Ratio | Notes |
|---|---|---|
| Baking soda + cream of tartar | 1/4 tsp soda + 1/2 tsp cream of tartar = 1 tsp baking powder | Mix and use immediately. |
| Baking soda + buttermilk | 1/4 tsp soda + 1/2 cup buttermilk | Reduce other liquid by 1/2 cup to compensate. |
| Baking soda + lemon juice | 1/4 tsp soda + 1/2 tsp lemon juice | For a single teaspoon's worth of lift. |
Which one should you use?
Cream of tartar is the cleanest swap because it's a dry acid — mix it with baking soda and use right away. If you only have a liquid acid (buttermilk, lemon), remember to cut the recipe's other liquids so the batter consistency stays right.
FAQ
What can I use instead of baking powder?
Mix 1/4 teaspoon baking soda with 1/2 teaspoon cream of tartar to replace 1 teaspoon of baking powder. Combine and use immediately, since it starts reacting once mixed.
Can I use baking soda instead of baking powder?
Only if you also add an acid. Baking soda alone is about 3-4x stronger and needs an acidic ingredient (buttermilk, yogurt, lemon, vinegar) to create lift — otherwise you'll get a metallic taste and poor rise.
More substitutes
General home-cooking guidance; results vary by recipe. Ratios are starting points — adjust to taste and texture.