⭐ Granulated Sugar and Cornstarch Blend (Best Gluten-Free Option)
1 cup granulated sugar + 1 tablespoon cornstarch, processed to a fine powder to replace 1 cup powdered sugarPowdered sugar is essentially granulated sugar ground to a fine powder with added cornstarch to prevent clumping. By replicating this blend at home, you achieve a similar particle size and anti-caking effect, which is critical for smooth batter and even sweetness.
To ensure success, pulse the granulated sugar and cornstarch in a high-speed blender or food processor until very fine. Sift the mixture before adding to the batter to avoid lumps.
This substitute maintains the cake's light texture and sweetness profile closely matching the original recipe, with no noticeable difference in crumb or moisture.