Banana Muffins

3 large ripe bananas, mashed
3⁄4 cup sugar
1 egg, slightly beaten
1⁄3 cup melted butter
1 teaspoon baking powder
1 teaspoon baking soda
1⁄2 teaspoon salt
1 1⁄2 cups flour

Mash bananas. Add sugar and slightly beaten egg. Add melted butter. Add the dry ingredients and stir. Bake at 375 degrees for 20 minutes.

(source: http://www.geniuskitchen.com/recipe/best-ever-banana-muffins-62286#activity-feed)