How to Make Homemade Cake Icing?

To make homemade cake icing you will need powdered sugar, butter, cocoa, milk, and vanilla. Mix 4 cups of powdered sugar with 1/2 cup of cocoa powder. For a darker chocolate, add more cocoa. Soften 1 stick of butter and mix in the sugar mixture. Add milk to thin the mixture to the right consistency. Finally, add 1 teaspoon of vanilla and mix well.