All-Purpose Flour with Cornstarch (Best Option)
3/4 cup all-purpose flour + 1/4 cup cornstarch per 1 cup cake flourCake flour has a lower protein content (~7-8%) compared to all-purpose flour (~10-12%), which results in less gluten formation and a more tender, delicate crust. Adding cornstarch dilutes the protein content and inhibits gluten development, mimicking cake flour's properties. This combination enhances crispiness by reducing chewiness in the fried coating.
To achieve the best results, thoroughly sift the all-purpose flour and cornstarch together to ensure even distribution. Be mindful not to overmix the coating mixture to avoid activating gluten.
Compared to using cake flour directly, this substitute yields a very similar texture and crispness in the fried chicken crust, with only a slight difference in tenderness that is generally imperceptible.