Source  Internet

Recipe Added:  1/9/2012

Preheat oven to 375 degrees. In a large mixing bowl, combine flour, baking powder, cinnamon and sugar. In a separate bowl, combine Nutella, banana, butter, buttermilk, egg and vanilla. Stir wet ingredients into dry just until combined. Spoon into greased muffin tins. Bake for 17-20 minutes or until a wooden pick inserted comes out clean. Remove from pan to wire rack to cool.

1. http://www.missinthekitchen.com/2011/03/02/nutella-banana-muffins/