Sour cream and mashed fully ripened bananas make this yummy banana muffins recipe incredibly moist. It's the chopped walnuts that make the banana muffins nutty.
|1-1/2 tsp.||Magic Baking Powder|
|1/2 tsp.||baking soda|
|1/4 cup||butter, softened|
|1 cup||mashed fully ripe bananas (about 3)|
|1 cup||sour cream|
|1 cup||chopped walnuts|