This classic buttercream frosting is light, airy, and perfect for decorating sugar cookies or cupcakes. It's easy to make with just a few simple ingredients.
Ensure your butter is truly at room temperature for the best creamy texture. Sifting the powdered sugar is crucial for a smooth, lump-free frosting. This recipe yields enough frosting to generously frost 12 cupcakes or a 9x13 inch cake.