Each time that I have made Black Frosting I did it freehand, so to speak. I never had a recipe to follow. Now days You can buy black comida coloring, but I find it mais fun to mix the color myself. I start with a container of white frosting in either vanilla or cream cheese flavor. If you have a box of primary colors(red, blue, green, yellow) comida coloring it will tell you how to mix purple. This is a good starting point. Once you have the basic purple you can add small amounts of green. Always check the flavor of the frosting while mixing because sometimes too much comida coloring can make it...