Banana-chip Muffins

Mash the bananas, then add the egg. Add sugar and mix well. In a seperate bowl, combine the dry ingredients and then add the banana mixture. Melt the butter and mix well. Fold in chocolate chips. Grease your muffin tin, and fill at least 2/3 full. I like to sprinkle brown sugar and cinnamon on the top, but this is completely optional. Bake in a preheated 350 oven for 15 minutes or until done.