Preheat oven to 350°F. Spray a 9 inch loaf pan with baking non-stick spray. Line the bottom and 2 sides of the pan with parchment paper. Spray again.
In a mixing bowl, sift the flour, baking soda, salt, and cinnamon. Set aside.
2 cups All-purpose flour, 1 teaspoon Baking soda, ¼ teaspoon Salt, 2 teaspoon Ground cinnamon
In a separate bowl, use a whisk and mix melted butter and brown sugar. Then, add in sour cream and vanilla. Mix until combined. Add in eggs and mix. Add in the mashed bananas.
½ cup Unsalted butter, ¾ cup Brown sugar, ¼ cup Sour cream, 1 teaspoon Pure vanilla extract, 2 Large eggs, 3 Medium ripe bananas
Add in the dry ingredients and mix with a rubber spatula. Add in mini chocolate chips and chopped walnuts.
¾ cup Mini chocolate chips, ½ cup Chopped walnuts
Pour batter into pan. Top with extra mini chocolate chips and chopped walnuts.
Bake for 50 minutes-1 hour. It is done baking when a toothpick inserted comes out clean. To prevent over browning, tent the loaf with foil. Let it sit in the pan for 10 minutes before transferring to a cooling rack. Allow to cool completely before cutting into it.