Let’s get the short answer out of the way: yes, you can absolutely use all-purpose flour instead of cake flour. But—and there’s always a but—you’ll need a quick trick to mimic cake flour’s airy, low-protein magic. Cake flour clocks in at about 7–9% protein, while AP hovers around 10–12%. That extra protein means more gluten, which can turn your delicate cake into a rubbery gym mat if you’re not careful.
Think of it like swapping a linen blazer for cotton: it works, but the drape changes. Your cake might be a touch denser and less tender, but honestly? Most guests won’t notice unless they’re professional bakers or your grandmother who judges texture like a wine critic.
The Two-Ingredient Hack
Here’s the secret the internet hoards: remove two tablespoons of AP flour per cup, then add two tablespoons of cornstarch. Sift everything together at least three times. Why three? Because cornstarch loves to clump, and sifting aerates the mixture like a tiny protein intervention. You’ve just created a DIY cake flour that costs zero extra trips to the store.
One pro tip: don’t skip the sifting. Skipping it is like ordering a frittata with no salt—technically edible, but deeply disappointing. Sift into a bowl, sift again, and then sift once more into your mixing bowl. Every little pocket of air is a favor to your cake’s future crumb.
