taken and adapted slightly from geniuskitchen.com
3 large bananas
1/3 c. sugar
1 egg
1/4-1/3 c. melted butter
1 c. blueberries (or raspberries, etc.)
1 tsp baking soda
1 tsp baking powder
1/2 tsp salt
1 1/2 c. flour
Mash bananas in bowl. Add sugar and egg. Add butter and blueberries. Add dry ingredients and stir gently. Pour into greased muffin tins. Bake at 375 for 18-20 min.