How to Replace Cake Flour with All Purpose Flour
Okay, extreme pantry emergency. No cake flour, no cornstarch. What now?
You can try arrowroot powder or potato starch. Same deal—use the same 2 tablespoon swap. It won’t be exactly the same, but it’ll be close enough to fool your guests.
3 Easy Ways to Replace All Purpose Flour with Cake Flour - wikiHow
Or, just use straight all-purpose flour and accept a slightly denser cake. It’ll still taste good. Your coffee won’t judge you.