This is a wonderful treat. When, I make this recipe, I make the following changes: add another cup of mashed bananas, use butter instead of margarine, use 1 cup brown sugar and 1/2 cup white sugar instead of all white sugar, add 1 teas cinnamon and 1 teas nutmeg. I like to dust the greased baking pan with sugar and cinnamon. Before I put in the oven, I sprinkle the top with a crumbly mixture of 1/4 cup brown sugar, 2-3 tbsp flour, 1/2 teas cinnamon, 2 tbsp melted butter and 1/4 cup finely chopped walnuts. Yum!