Preheat oven to 350°.
Grease a loaf pan with butter, shortening or oil
In a large bowl, peel and mash bananas.
Add to bowl, eggs, butter and sour cream . Mix well.
Add flour, sugar, salt, melted butter, baking soda, baking powder and nuts and blend.
Pour into loaf pan.
Sprinkle with brown sugar, if desired.
Bake for 1 hour or until toothpick comes out clean.