Angie shows how to make chocolate frosting for cakes or cupcakes in this video tutorial. The first step is melting one stick of butter. Add 2/3 of unsweetened cocoa to the butter and mix thoroughly. Add 1 teaspoon of vanilla to bring out the flavor of the chocolate. Then, add 3 cups of powdered icing sugar and 1/3 cup of milk. Mix all of these ingredients together. If the consistency of the mix is too runny, add more sugar. If it is too stiff, add a little bit more milk. Once you get it to the consistency you want and your cake is cooled, the frosting can be spread on top. To learn how to make homemade chocolate frosting follow the steps outlined in this video tutorial.