Here's the recipe for the before mentioned cake I made for the potluck:
Cherry Jello Cake
1 (18.25 oz.) white cake mix
1 (3 oz.) pkg of cherry flavored gelatin
1 cup boiling water
1 (21 oz.) can cherry pie filling
1 (16 oz.) container Cool-Whip
Prepare and bake cake mix according to pkg. directions for 9 x 13 cake. Remove cake from oven. Poke holes at once down through cake with fork at one inch intervals.
While cake cools, combine water and jello. Stir and pour mixture over cake. Top with the cherry pie filling. Cover with Cool-Whip. Refrigerate cake at least one hour before serving.