In my trusty box of recipe cards, there are two for banana bread. I've made them both recently, and decided to keep just this one:
3 mashed bananas
6 tablespoons melted butter
1/2 cup white sugar
1/2 cup brown sugar
1 large room-temperature egg
1 teaspoon vanilla
1 and 1/2 cup flour
1 teaspoon baking soda
1/4 teaspoon salt
Preheat oven to 325F and grease a 9"x5" loaf pan.
Whisk first four ingredients till well blended. Then whisk in egg and vanilla.
In a separate bowl, sift together flour, soda, and salt. Add to the wet ingredients and stir just until blended. Don't overdo it. Place in greased pan.
Bake 75 minutes or till a toothpick comes out clean.
Cool for 20 minutes in the pan, then turn out to cool completely on a rack.