2 c. sugar
1/2 c. sweet milk
1 stick of butter (or 1/2 stick butter substitute)
1 tsp. vanilla
3 tbsp. cocoa

Mix sugar, cocoa and milk together. Bring to a boil. Boil for 1 minute. Remove from heat, add butter and vanilla. Beat with electric mixer for at least 3 minutes or until icing becomes creamy.