Substitution for baking powder?

There are three ways you can substitute for baking powder, depending on the recipe:

1 teaspoon baking powder equals 1/4 teaspoon baking soda plus 1/2 teaspoon cream of tartar; or, 1 teaspoon baking powder equals 1/2 teaspoon baking soda plus 1/2 cup buttermilk or plain yogurt: and 1 teaspoon baking powder also equals 1/4 teaspoon baking soda plus 1/3 cup molasses. When using the substitutions that include liquid, reduce other liquid in recipe accordingly.

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you can use self rising flour al the way for your recipe just don't add any salt,baking soda or baking powder to it you already have them all in the self rising flour.

baking soda and cream of tartar. 3 teaspoons of baking soda and 1 teaspoon of cream of tartar.

Or you can use 3 teaspoons baking soda and change the milk to butter milk or beer.

yeast would make it rise, it would change the texture of the cornbread but i bet it'd be tasty.

thank you so very much.....<3