Grease and flour l3″x9″ baking pan. Set oven to 350. Bake l chocolate fudge cake mix according to directions. While cake is warm poke many holes in it with the end of a wooden spoon. Pour and spread l can of sweetened condensed milk over all and let it seep in. When cake is cool spead l jar caramel topping over entire cake. Next spread Cool whip over cake. Finally sprinkle crushed Heath Bars over all (l package of miniature Heath Bars would be enough (9 ozs. in all). Refrigerate until ready to eat. Can be made l day ahead (preferably).