How To Make Baking Powder Out of Baking Soda

Cooking Lessons from The Kitchn

Baking powder and baking soda are both baking essentials, and depending on the specific recipe you may need one or the other (or both). But did you know that you can make baking powder?

I don't know about you, but I tend to run out of baking powder faster than soda. Knowing this simple formula has helped me out in a pinch. Here's how to put baking soda and one other staple together to make baking powder.

Watch the video —->

Watch the Video!

The other ingredient you need is cream of tartar, which is a less-used baking staple. I always seem to have half a bottle of this around (since I don't use it often!). The cream of tartar adds acidity to the baking soda to create baking powder

What's the difference between baking soda and baking powder anyway? → The Difference Between Baking Soda and Baking Powder

You can make this baking powder ahead of time, and stash it away for when you need it, or do as I do and make it at the last minute when I find I'm out!

How To Make Baking Powder Out of Baking Soda

Makes 3 tablespoons baking powder

What You Need

Ingredients
1 tablespoon baking soda
2 tablespoons cream of tartar

Equipment
Tablespoon measuring spoon
Small whisk
Airtight container

Instructions

  1. Mix the baking soda and cream of tartar: Mix very thoroughly with a whisk.
  2. Store in an airtight container: The mixture can clump up so be sure to store in an airtight, moisture-free container. This can be stored almost indefinitely, although if it gets old use this tip to check to see if it's still active enough to bake with.

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(Image credits: Faith Durand)