Substitute All-Purpose Flour for Cake Flour With This Formula
Cake flour is often used to prevent cakes from getting too tough or chewy. But if you’re in a pinch for baking flour and don’t have time to head to the store, The Kitchn offers an easy-to-remember baking flour substitute made up of two ingredients that you probably already have in your pantry.
The formula is so simple that it’s worth remembering:
1 cup AP flour – 2 tablespoons AP flour + 2 tablespoons cornstarch = 1 cup baking flour
This substitution is useful if your pantry is full of basic ingredients, but not necessarily specialty foods like baking flour. If you’re curious about how baking flour differs in composition from all-purpose flour, this article also goes into detail on those details, or if you’re allergic to corn, it offers other ideas for replacing baking flour that don’t contain cornstarch.