Death By Chocolate

Directions

1. 1
   Grease and flour a 9 x 13-inch flat cake pan.
2. 2
   Bake cake mix according to package directions.
3. 3
   While still warm, puncture top with holes at 2-inch intervals.
4. 4
   Carefully pour Kahlua over top of hot cake.
5. 5
   Let cool; cut into cubes.
6. 6
   Make up the chocolate mousse.
7. 7
   Place 1/2 the cake cubes in bottom of pretty serving bowl.
8. 8
   Top with 1/2 the chocolate mousse mixture.
9. 9
   Top with 1 carton Cool Whip.
10. 10
    Top with 4 crushed Heath bars.
11. 11
    Repeat layers, except reserve the last 4 crushed Heath bars to place on top of dessert when it is served. Cover with Saran Wrap.
12. 12
    Allow to chill for at least six hours.
13. 13
    Can be made a day ahead.
14. 14
    To serve, top with remaining Heath bar pieces and spoon out servings.