prepare and bake cake according to box directions in 9x13 pans

once cake cools, poke holes in it with a wood spoon handle

prepare Pudding according to directions minus 1 Cup of milk (makes Pudding firmer)

pour Pudding asap over the cake with the poked holes

slice bananas and layer on top of Pudding

smooth on layer of cool whip over bananas

crush vanilla wafers and sprinkle on top

refrigerate and finished :-)

can use Banana flavored Pudding and no bananas as well. Can not crush up wafers if preferred