All-Purpose Flour with Cornstarch (Best Option)
For every 1 cup cake flour, use 1 cup all-purpose flour minus 2 tablespoons, plus 2 tablespoons cornstarchCake flour has lower protein content (around 7-8%) compared to all-purpose flour (10-12%). Mixing cornstarch with all-purpose flour reduces the overall protein, mimicking cake flour's tenderness and resulting in less gluten formation. This is crucial in cheesecake to maintain a delicate, creamy texture without toughness.
To ensure success, sift the all-purpose flour and cornstarch together thoroughly to achieve a uniform mixture. Avoid overmixing the batter after adding this flour blend to prevent gluten development.
Compared to using cake flour, this substitute produces a very similar texture and mouthfeel, maintaining the cheesecake's characteristic smoothness and slight firmness.