I found this in the LA Times Food Section years ago, and adapted it for a crowd. We make these when we go camping and we're sick of S'mores. We just bring a bunch of bananas and the components we prepared ahead of time and make them until we can't eat any more. Don't be tempted to use store bought caramel; home made sauce really makes a diference, and it's quick and easy to make. IMPORTANT: When you go to the store, you DO NOT want the Crema Agria - that's like sour cream. Crema Mexicana is like Creme Fraiche and tastes sweet, like heavy whipping cream.