Peanut Butter Banana Muffins

1 1/2 cups all purpose flour
1/2 cup sugar
1 tsp baking powder
1/2 tsp baking soda
1/2 tsp salt
1 egg
1/2 cup butter, melted
1 1/2 cups mashed ripe bananas (about 3)
3/4 cup peanut butter chips

Combine flour, sugar, baking powder, baking soda, and salt.  In another bowl, combine egg, butter and bananas.  Stir into dry ingredients, just until moistened.  Fold in chips.  Fill greased muffin cups 3/4 full.  Bake at 375 for 18-22 minutes.

Makes 12 muffins