Questions cooks ask
What is the best substitute for cake flour?
All-purpose flour + cornstarch: ⅞ cup all-purpose flour (1 cup minus 2 tbsp) + 2 tbsp cornstarch per 1 cup. Sift together twice.
Why does cake flour matter in a recipe?
Cake flour is low in protein for a tender crumb. Cornstarch dilutes the protein in all-purpose flour.