Next, combine the butter and 3 cups sugar in a large bowl and cream them together.
Mix in eggs, mashed bananas, sour cream, vanilla, and cinnamon.
Mix in salt, baking soda, and flour.
Stir in nuts.
Divide into your prepared pans.
Voila! That's it!
Notes
Pro Tip: I highly suggest using muffin tins. They come out in individual portions and back in only 30 to 35 minutes. If you use a loaf pan the baking time is an hour to an hour and 15 minutes.