This recipe frosts 12 cupcakes
2 1/2 cups powdered sugar
6 1/2 tablespoons unsalted butter
1/3 cup unsweetened cocoa
2 tablespoons whole milk
- Beat the icing sugar, cocoa powder and butter together in a freestanding electric mixer with a paddle attachment (or use a handheld electric whisk) on medium-slow speed until the mixture comes together and is well mixed.
- Turn the mixer down to slow speed. Add the milk to the butter mixture a couple of tablespoons at a time. Once all the milk has been incorporated, turn the mixer up to high speed.
- Continue beating until the frosting is light and fluffy, at least 5 minutes. The longer the frosting is beaten, the fluffier and lighter it becomes.