I have also used 12 oz. juice with small topping...tart flavor, but good.
1roll buttery crackers, crushed
1/2 cbutter or margarine, melted
1 can(s)sweetened condensed milk
1-6oz. can(s)lemonade concentrate, frozen (or your fav flavor), thawed
1-8 oztub of whipped frozen topping, thawed