Punch Bowl Cake

1 Chocolate Cake, Baked in a 9x13 pan according to the package directions
12 Ounce Container Cool Whip
1 Large Instant Milk Chocolate Pudding Mix
Toffee Pieces or 6 Skor Candy Bars, Crushed

Mix and bake the chocolate cake according to the directions on the package. Also mix the pudding according to the directions on the box. Allow the pudding to set. In the bottom of a punch bow, crumble one half of the cake. Then lightly spread half of the pudding on top. Then add a layer of Cool Whip using half of the Cool Whip. Then sprinkle a layer of toffee pieces. Repeat the layers one more time.