1. Assemble in a 2-quart bowl:.
2. Make the pudding as directed and add half of the liqueur before it sets, mixing well.
3. Put half of the cake cubes in the bottom of the bowl then pour half of the rest of the liqueur over the cake.
4. Spread half of the pudding over the cake then spread half of the Cool Whip over the pudding.
5. Repeat layers then break the Skor bar up and sprinkle pieces over the top.