Found a great recipe on Barbara Bakes website http://barbarabakes.com for banana bread with a twist – swirls of Nutella throughout. Tested mini loaves and found that my oven required an additional 10 minutes, so be sure to test for doneness.
Prepare pans: Well oil 4 mini loaf pans. Place a piece of waxed paper or parchment in the bottom of each pan.
1 cup mashed ripe banana (about 3 small)
1/2 cup brown sugar
1/2 cup sour cream
1/4 cup melted butter
2 cups flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/4 teaspoon salt
1/2 cup Nutella
Combine first 4 ingredients in a large bowl; beat at medium speed until well blended. In a separate bowl combine flour and next 3 ingredients; add flour mixture to banana mixture, stirring just until moistened.
For 4 mini-loaves; divide 1/2 of batter between 4 mini pans. Spoon dollops of 1/2 of the Nutella, swirl a bit, cover with remaining batter, add dollops of remaining Nutella, swirl again.
Bake at 350 degrees for 35-45 minutes or until wooden toothpick inserted in center comes out clean. Cool 10 minutes on wire rack. Cool completely before serving.