The only Banana Bread recipe you will ever need.
Preparation: Preheat oven to 375 degrees F (150 degrees c). Grease four 7x3 inch loaf pans. In a small bowl, mix together the last 3 ingredients (brown sugar, white sugar, and cinnamon)
In a large bowl, cream butter and 3 cups of sugar together. Mix in the eggs, mashed bananas, sour cream, vanilla, and cinnamon. Mix in salt, baking soda, and flour. Stir in nuts.
Divide the mixture into prepared pans, and sprinkle the top with the prepared cinnamon sugar mixture (and more nuts if you want!)
Bake for 1 hour, or until a toothpick inserted in the center comes out clean. Enjoy!
You can halve this recipe if you only want to make two bread loaves, but trust me when I say they will be eaten quickly (and you can always give one or two away).