Line the bottom and sides of a baking dish with fingers of bread (crusts removed) which have been dipped in melted butter. Fill the center with the apples, peeled, cored, and sliced. Sprinkle the apples with a mixture of the sugar and cinnamon. Add 1/2 cup of water and cover the top with a layer of well-buttered fingers of bread. Sprinkle top with additional sugar. Cover and bake 1 hour in a 350 degree F oven. Serve hot with whipped cream.