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 a lower protein content (about 7-8%) compared to all-purpose flour (10-12%), which results in less gluten formation and a softer texture. Adding cornstarch dilutes the protein content and inhibits gluten development, mimicking cake flour's properties.
To ensure success, sift the all-purpose flour and cornstarch together to evenly distribute the cornstarch. Avoid overmixing the batter to prevent gluten overdevelopment.
The final carrot cake will have a tender, moist crumb similar to one made with cake flour, maintaining the delicate texture expected in this dessert.