Preheat your oven to 350 degrees Fahrenheit. Spray a 9 by 5 inch bread pan well with cooking spray. In a large bowl, whisk together the flour, baking soda, and salt.
2 cups all purpose flour, 3/4 teaspoon baking soda, 1/2 teaspoon salt
In a medium bowl, whisk together the mashed bananas, cooled butter, eggs, sour cream, sugar, and vanilla.
3 very ripe bananas, 3/4 cup granulated sugar, 6 tablespoons unsalted butter melted and cooled, 2 large eggs at room temperature and lightly whisked, 1/4 cup sour cream, 1 teaspoon vanilla extract
Gently fold the wet ingredients into the dry ingredients. Be careful not to over mix.
Pour the bread batter into the prepared pan. Bake for 55 minutes or until a toothpick inserted slightly off center in the bread comes out with just a few crumbs.
Allow the bread to cool in the pan for 10 minutes. Then remove and allow to cool on a wire rack for 1 hour before slicing and enjoying.