1 box chocolate cake mix
2 boxes of instant chocolate pudding (mixed and set)
1 tub cool whip
1 cup of Kahlua
1 package of Heath bar bits
Bake cake as directed. Once cooked punch holes in it with a fork. Pour the cup of Kahlua of the cake and let it sit for a few minutes. Take half the cake and crumble into large dish or bowl. Layer with pudding, cool whip, and Heath bar bits. Repeat the process again.
I usually keep it chilled until ready to serve. Delicious.
The amount of Kahlua can be a bit strong; you can always use less if you want. It serves a bunch of people!