1. Combine Ingredients: While the brownies are cooling, begin to make the frosting. In a medium bowl, combine the 2 tablespoons of softened butter, 3 tablespoons of milk, 2 tablespoons of unsweetened cocoa powder, and 1 ½ cups of powdered sugar until a smooth frosting texture is reached. If the mixture is too dry, add milk 1 tablespoon at a time. If it’s too runny, add powdered sugar 1 tablespoon at a time.
2. Frost & Serve: Once the frosting is the right texture, spread it over the brownies while they are still warm so that some of the icing melts into the cake. Cut into squares and use the foil to help lift the brownies out of the pan.

Enjoy this classic childhood treat!