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A cozy kitchen scene featuring a small jar of homemade baking powder with measuring spoons and flour on a wooden surface.
Jana Rae

Homemade Baking Powder

Learn how to make homemade baking powder using just three simple ingredients! This easy DIY recipe is a perfect substitute for store-bought baking powder.
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Prep Time 2 minutes
Total Time 2 minutes
Servings: 1 Tablespoon
Course: Baking Staples, Homemade Ingredients
Cuisine: American
Calories: 2
Ingredients Method Notes

Ingredients
  

  • 2 tsp cream of tartar
  • 1 tsp baking soda
  • 1 tsp cornstarch (optional for longer storage)

Method
 

  1. Mix the Ingredients: In a small bowl, whisk together 2 teaspoons cream of tartar and 1 teaspoon baking soda until well combined.
  2. Optional Step for Storage: If you’re making a larger batch or plan to store it, add 1 teaspoon of cornstarch. This absorbs moisture and keeps the baking powder from clumping.
  3. Store: Transfer to an airtight container or small jar. Keep in a cool, dry place.

Notes

How to Use Homemade Baking Powder

Use your DIY baking powder in a 1:1 ratio in any recipe that calls for baking powder. For example, if a recipe calls for 1 tablespoon of baking powder, replace it with 1 tablespoon of homemade baking powder.

Tips for Success

  • Freshness Matters: Always check that your baking soda is still active for the best results.
  • Why Cornstarch? Cornstarch helps prevent clumping but isn’t necessary if you’re using it immediately.
  • Scale Up for Later: Make a larger batch to store for future recipes (triple or quadruple the ingredients).