This recipe is from a bakery in Boston called Flours. I made a couple loaves of it today and it's hands down the best I've ever had. I did make one loaf gluten free by subbing the flour with Tom sawyer gluten free flour mix, and it turned out flawless! It's the sour cream that makes it so good!
1 2/3 cups all-purpose flour
1 teaspoon baking soda
1/4 teaspoon ground cinnamon
1/2 teaspoon salt
1 cup plus 2 tablespoons sugar
1/2 cup oil
3 1/2 bananas, very ripe, mashed
2 tablespoons creme fraiche or sour cream
1 teaspoon vanilla extract
2/3 cup walnuts, toasted and chopped
Set oven to 350 degrees F. Line the bottom of a loaf pan with parchment paper.
Sift together the flour, baking soda, cinnamon and salt. Beat sugar and eggs with a whisk until light and fluffy, about 10 minutes. Drizzle in oil. Add mashed bananas, creme fraiche, and vanilla. Fold in dry ingredients and nuts. Pour into a lined loaf pan and bake for about 45 minutes to 1 hour.