Dark chocolate lovers will adore this rich and creamy frosting — a great finishing touch to layer cakes, cupcakes and even brownies.
Beat butter at medium speed with an electric mixer until fluffy. Combine powdered sugar and cocoa; gradually add to butter alternately with milk and vanilla, beginning and ending with powdered sugar mixture. Beat at low speed until blended after each addition.
Tip: To prevent a white dusting on your chocolate cake layers, dust cakepans with cocoa instead of flour.
Southern Living Cook-Off Cookbook