Warning: This cake is so good (and easy) - you'll want to eat the whole thing yourself!
Yellow cake mix
1 can sweetened condensed milk
1 jar caramel topping
3-4 Butterfinger candy bars
Bake the cake mix according to the package. While hot - poke holes all over it. Mix together the sweet milk and caramel and pour over cake. Crush up the butterfingers and spread on top. Allow to cool and refrigerate. Once completely cool - top with cool whip.