▢ 3 bananas very ripe to black
▢ 5 tablespoons butter melted and cooled
▢ 1 tablespoon canola oil or vegetable oil
▢ ¼ cup buttermilk at room temperature
▢ 2 eggs beaten
▢ 1 teaspoon vanilla
▢ 2 cups flour
▢ ½ cup granulated sugar
▢ ¼ cup brown sugar
▢ ¾ teaspoon baking soda
▢ ½ teaspoon salt
▢ ½ cup chopped walnuts optional