Mix all together & put into greased & floured 9 x 13 pan bake at350 for 30 -40 mins. For the go "FROSTING" see step 2 please
Mix butter,powdered sugar,& 2 egg yolks then FOLD in 1 8 oz tub of cool whip
Crush 4 FROZEN Heath bars & sprinkle over top of "frosting".
*HINT* You can also use toffee bits, mini chocolate chips or drizzle chocolate syrup over top of frosting. If you choose to use the Heath bars a hammer works well for the crushing process. KEEP CAKE IN REFRIGERATOR.