1 chocolate cake, baked & cooled
1 box instant chocolate pudding
1/4 c. Kahlua
1 (8 oz.) container Cool Whip
1 Heath bar

Mix pudding according to directions on box. Split each cake layer in half. Place 1 layer in a bowl and sprinkle on 1/8 cup Kahlua. Add 1/3 of Cool Whip to this layer. Place second cake layer on top and spread pudding mix over it. Add third cake layer, sprinkle with remaining Kahlua. Spread with 1/3 of Cool Whip. Add top layer, spread with Cool Whip and chopped candy bar.