You need four medium sized bowls. In the first bowl: Pour 2 cups of white cake batter. In the second bowl: Pour one cup white cake batter and one cup chocolate cake batter and mix together. In the third bowl: Pour 2 cups white cake batter, green food coloring (I did 15 drops) and 2-3 tablespoons of chocolate frosting. Mix together and adjust for the desired camo green that you want. In the fourth bowl: Pour 2 cups of chocolate batter.