From the ArcaMax Publishing, Features Newsletter:
http://www.arcamax.com/news/features/s-1408-151953
2 packages yellow cake mix
1 square cake pan 8 x 8 x 2
1 round 8-inch cake pan
1 container white frosting
1 package red cinnamon candies
Prepare cake mixes according to package instructions. Divide cake
mixes evenly between the two pans. Cook cakes according to directions
and allow to cool. Place square cake on a large plate with one point
facing you and one point facing away from you so it looks like a
diamond. Cut round cake in half and place adjacent to the topsides of
the square cake to form a heart. Decorate with frosting and cinnamon
candies.
The Skinny: Use the light frosting.