To make chocolate cake, stir together dry ingredients, then add to wet ingredients. Then mix until smooth.
For vanilla cake, repeat method, stirring dry ingredients together first, then mixing into wet mixture, and then blending til smooth.
Grease and dust three round cake pans with flour.
Place cake ring into first pan. Pour cake batters alternating chocolate, then vanilla, then chocolate into rings.
Carefully remove insert and place cake ring into second pan. Pour cake batters alternating chocolate, then vanilla, then chocolate again.
Rinse cake ring insert and wipe, then place into third pan. Pour cake batters alternating vanilla, then chocolate, then vanilla again.
Place three pans on center rack in oven. Bake at 350 for 22 - 30 minutes or until done.
Cool for a few minutes, then carefully turn cakes out onto plates to finish cooling completely.
Then, stack cakes, alternating patterns.
Frost with your favorite coconut cream icing, buttercream icing, or chocolate fudge icing.