Melt Ingredients: In a saucepan, combine 1 stick of butter, 3 tablespoons of cocoa powder, and 6 tablespoons of cream or milk. Heat over medium heat, stirring, until the butter melts and the mixture is smooth and warm.
Finish Frosting: Remove from heat. Beat in the 1 teaspoon of vanilla extract and the 3 3/4 cups of confectioner’s sugar until the frosting is smooth and spreadable.
Frost Cake: Immediately spread the warm frosting evenly over the slightly cooled cake while it’s still in the pan.
