Discovered your baking powder is expired or empty mid-recipe? Don't panic! You can make fresh baking powder in seconds with two simple ingredients.
This homemade version is actually fresher than store-bought and works identically in all baking recipes.
Here's the foolproof formula plus alternatives when you don't have cream of tartar.
The 2 Best Substitutes
1. Baking Soda + Cream of Tartar
Easy
(5/5)
Substitution Ratio
1/4 tsp baking soda + 1/2 tsp cream of tartar = 1 tsp baking powder
Texture: Identical rise to store-bought
Flavor: Neutral
Best for: All baking recipes
Pros & Cons
Perfect substitute
Fresher than store-bought
Quick to make
Need cream of tartar
Must use immediately
Pro Tip
Mix fresh for each use. Don't store the mixture.
2. Baking Soda + Acid (Lemon/Vinegar)
Medium
(4/5)
Substitution Ratio
1/4 tsp baking soda per 1/2 cup flour, add 1 tsp lemon juice to wet ingredients
Texture: Good rise, slightly different
Flavor: Possible slight tang
Best for: Quick breads, muffins, cakes
Pros & Cons
Common ingredients
Works well
No special purchases
More complex
Possible flavor change
Need to adjust recipe
Pro Tip
Add acid to wet ingredients, soda to dry ingredients.
Expert Tips
Professional Secrets
- Always make fresh - don't store homemade baking powder
- Double-check measurements - too much baking soda creates metallic taste