Directions
Preheat the oven to 350 degrees Fahrenheit. Grease a loaf pan with 1 tablespoon of butter. In a large bowl, mash the bananas until smooth. Stir in the remaining melted butter, sugar, eggs, and vanilla extract. In a separate bowl, whisk together the flour, baking soda, salt, and cinnamon. Add the dry ingredients to the banana mixture and stir just until combined. Fold in the chopped walnuts. Pour the batter into the prepared loaf pan. Bake for 55 to 65 minutes until a toothpick inserted in the center comes out clean. Cool in the pan for 10 minutes, then transfer the bread to a rack to cool.