This is our favorite recipe for basic banana bread. It's not too sweet, too wet or too cakey, and has just the right amount of deliciously healthy banana.
Preheat oven to 350°F.
In a mixing bowl, sift together flour, baking soda, salt and cinnamon.
Mash the bananas in a separate bowl until smooth.
In a stand mixer fitted with the paddle attachment, cream together butter and sugar for 3-5 minutes at medium speed, or until fluffy. Add in eggs one at a time until mixture is fully combined. Add in vanilla, sour cream and mashed bananas. Turn down to low speed and add flour mixture in batches.
Spray a 9x5-inch loaf pan with cooking spray. Pour batter into the loaf pan and bake in the oven for 1 hour or until a toothpick comes out clean.