Heat oven to 325°F. Generously grease a 12-cup
tube cake pan. Make cake batters as directed on
boxes. Divide the white cake into two separate
Add orange food coloring to one bowl and mix to
the desired color. Then, add purple to the other
and mix to the desired color.Pour 2/3 of the
chocolate cake batter into a bowl and mix with a
few drops of the black food coloring. Discard the
remainder of the batter or use it for cupcakes.
(You only need 2/3 of the chocolate cake batter,
because if you use the whole thing in won’t fit in
the tube pan).
Pour 1/2 of the chocolate cake mix into the bottom
of the greased pan. Carefully pour the purple over
the chocolate making sure you don’t stir it. Just
pour it on top.Then, carefully pour the orange
batter over the purple batter and pour in the
remainder of the chocolate.Bake as directed on box
or until toothpick inserted in center comes out
clean. Cool 5 minutes.Turn pan upside down onto
cooling rack that is placed over a cookie sheet.
Cool cake completely, about 30 minutes Once cake
is cool, equally divide your frosting into 3
bowls. Use the food coloring again to make one
bowl orange, one purple and one black.