Self-rising flour is basically regular flour that went to a party and came home with baking powder and salt. It’s that simple. The baking powder is the gas that makes your biscuits blush and your cakes puff up like a pufferfish on a date.
For every one cup of all-purpose flour, you need to add 1½ teaspoons of baking powder and ¼ teaspoon of salt. Yes, that’s the magic ratio. Memorize it, tattoo it on your forearm, or just bookmark this article—I won’t judge.
If you need three cups of self-rising flour, just multiply everything by three. That’s 4½ teaspoons of baking powder and ¾ teaspoon of salt. Math is hard, but this is the kind of math even a sleepy raccoon could handle.
