1 stick butter at room temperature, 1 teaspoon vanilla, (1) 4 ounce package of softened cream cheese, 4 cups powdered sugar, 1 cup cocoa, 2 tablespoons milk.
Mix the softened butter and cream cheese together until well blended. Add vanilla and milk. Mix in the powdered sugar and cocoa powder; scrap down the bowl periodically. Add more milk, by drops, if frosting is too thick.