1 pkg. chocolate cake mix, prepared according to pkg. directions
1/2 c. Kahlua (optional)
2 - 3 pkg. chocolate pudding mix, prepared according to pkg. directions
2 (12 oz.) Cool Whip
6 frozen Score (or Heath) candy bars, broken up

Serve in trifle bowl or 13 x 9 x 2 inch pan. Break cooled candy into chunks. Layer: some cake, some Kahlua, some chocolate pudding, some Cool Whip, some broken candy pieces - alternately repeating layers until top of serving dish is reached. Serves 10 to 12.