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There is something deeply satisfying about knowing you can make your own pantry staples from scratch — especially when you run out mid-recipe.
Learning how to make homemade baking powder is one of those small kitchen skills that gives you confidence and flexibility. It uses just three simple ingredients and works just like the store-bought version.
If you bake often — biscuits, muffins, cakes, waffles — this is a foundational recipe worth keeping in your Kitchen Basics rotation.
Why You’ll Love This Recipe
- Made with just three pantry ingredients
- Takes less than 5 minutes
- Perfect emergency substitute when you run out
- Budget-friendly
- Stores well for months
- Builds your from-scratch baking confidence
This is one of those quiet “kitchen power” recipes that makes baking feel easier and more self-sufficient!
Ingredients
- Cream of tartar
- Baking soda
- Cornstarch
(Measurements are listed in the recipe card below.)
Equipment Needed
Mixing Bowl – A small bowl works perfectly for whisking everything evenly.
Balloon Whisk – Ensures the baking soda and cream of tartar are fully incorporated.
Airtight Container – I like using these pantry jars or a small mason jar to keep moisture out and extend shelf life.
How to Make Homemade Baking Powder
Homemade baking powder works because it combines an acid (cream of tartar) with a base (baking soda). When moisture and heat are introduced in a recipe, the reaction creates carbon dioxide — which helps your baked goods rise.
To make it, simply whisk the ingredients together thoroughly. The key is making sure there are no streaks or pockets of baking soda left unmixed. An even blend ensures consistent lift in your baked goods.
If you plan to store it, the cornstarch is important. It absorbs moisture and prevents clumping, helping extend the life of your homemade baking powder.
Once combined, transfer it to a clean, airtight jar and store it in a cool, dry place.
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PrintHomemade Baking Powder
Learn how to make homemade baking powder with just three simple pantry ingredients. This ½ cup batch is perfect for stocking your Kitchen Basics cabinet and works just like store-bought baking powder.
- Prep Time: 5 minutes
- Cook Time: 0 minutes
- Total Time: 5 minutes
- Yield: 1/2 cup (24 tsp)
- Category: Basics
- Method: No Bake, No Cook
- Cuisine: American
Ingredients
- 4 TBSP cream of tartar
- 2 TBSP baking soda
- 2 TBSP cornstarch
Instructions
-
Add the cream of tartar, baking soda, and cornstarch to a dry mixing bowl.
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Whisk thoroughly with a balloon whisk until completely combined and no streaks remain.
-
Transfer to an airtight container and store in a cool, dry place.
Notes
-
The cornstarch helps prevent clumping and extends shelf life. Do not omit if storing.
- This recipe is easily scalable, just be sure to keep your ratios 2:1:1.
-
To test freshness, stir 1 tsp baking powder into ½ cup hot water. It should bubble immediately.
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Store in an airtight container for up to 3–6 months.
-
This recipe can be doubled or halved while keeping the same 2:1:1 ratio.
Notes & Tips
- Do not skip the cornstarch if storing. It helps prevent early activation.
- Label your jar with the date. Homemade baking powder is best used within 3–6 months.
- Always keep the container tightly sealed. Moisture is the enemy.
How to Test If It’s Still Active
Stir 1 tsp of baking powder into ½ cup hot water. If it bubbles immediately, it’s still fresh and effective.
Storage
Store in an airtight container in a cool, dry pantry. Avoid keeping it near the stove where humidity fluctuates.
Variations & Serving Ideas
This baking powder works in:
- Homemade biscuits
- Pancakes and waffles
- Layer cakes
- Muffins
- Quick breads
You can also double or halve the batch while keeping the same ratio.
Final Thoughts
Building your own pantry staples — even simple ones like baking powder — creates a stronger foundation for from-scratch cooking.
This is part of our growing Kitchen Basics collection designed to help you bake with confidence, even when the pantry feels empty.
If you make it please consider leaving a review. We love to see your posts! Tag us on Facebook, Instagram, or TikTok! @ourgratefulkitchen
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