Why do you need granulated sugar in cupcakes?

Granulated sugar is essential in cupcakes for several reasons: it sweetens the batter, enhancing the overall flavor. It also contributes to the cupcake's texture, helping to create a tender crumb by incorporating air during the creaming process with butter. Additionally, sugar aids in moisture retention, ensuring the cupcakes remain soft and enjoyable. Lastly, it plays a role in browning, giving the cupcakes a desirable golden color as they bake.