Graham cracker crumbs
Bananas
1/2 gal. vanilla ice cream, frozen solid
1 c. chocolate chips
1/2 c. butter
2 c. powdered sugar
1 1/3 c. evaporated milk

Cover bottom of 9 x 13 inch pan with crumbs. Slice a layer of bananas over crust. Slice vanilla ice cream. Lay over bananas. Mix remaining ingredients. Stir constantly until thick. Boil 8 minutes. Set aside to cool so as not to melt ice cream. When cool, spread over ice cream. Cover with Cool Whip. Freeze.