If you mix baking powder with vinegar, it erupts. That’s basically what happens in your oven, but with less mess and more heat. So your substitute flour is literally a controlled science experiment that tastes good.
Also, the average American uses about 2,000 pounds of flour in a lifetime. That’s enough to build a small bakery, or a very large, edible pillow fort.
So next time you’re out of all-purpose flour, don’t cry into your empty bowl. Just grab any flour, add baking powder and salt, and become the Mad Scientist of Self-Rising. Your biscuits will thank you. Your taste buds will throw a party. And your pantry will finally stop mocking you.