So, what's in the secret sauce? Cocoa powder is a key ingredient, but it's not just any ordinary cocoa powder. Red velvet also contains food coloring, usually in the form of red dye, which gives it that signature color. And then there's the buttermilk, which adds a tangy flavor and moist texture.
But wait, there's more! Acidic ingredients like vinegar or lemon juice are also added to the mix, which might sound weird, but trust us, it's a game-changer. These ingredients react with the baking soda to create a chemical reaction that makes red velvet cakes and cookies extra fluffy and delicious.