Prepare cake mix according to package directions. Place
batter in 1 square pan and 1 round pan of equal size. Bake according to
package directions. Cool layers; remove from pans. Place square layer on large
piece of foil-covered cardboard. Cut round layer in half; join to square layer
diagonally, making large heart.
Prepare frosting mix as directed on box; color bright
red. Frost cake. Decorate with small valentine candies, if desired. Yield:
15-18 servings.