Granulated Sugar and Cornstarch Blend (Best Option)
1 cup granulated sugar + 1 tablespoon cornstarch = 1 cup powdered sugarPowdered sugar is essentially granulated sugar ground very finely with a small amount of cornstarch to prevent clumping. By blending granulated sugar with cornstarch and processing it in a food processor, you achieve a similar texture that dissolves quickly in waffle batter, ensuring even sweetness and smooth texture.
To ensure success, pulse the granulated sugar and cornstarch until very fine but not melted. Use immediately or store in an airtight container to prevent moisture absorption. Avoid using just granulated sugar alone as it may not dissolve fully.
Compared to original powdered sugar, this substitute maintains the batter's texture and sweetness without adding moisture, resulting in waffles that are just as light and tender.