Preparation Steps

• Preheat the oven to 350°F (175°C) and grease a 9x13-inch baking dish.
• In a medium bowl, whisk together flour, baking soda, and salt. Set aside.
• In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
• Beat in the vanilla extract and eggs, adding one at a time. Mix until well combined.
• Stir in the mashed bananas.
• Gradually add the dry ingredients to the wet ingredients and mix until just combined.
• Fold in the chopped walnuts, if using.
• Pour the batter into the prepared baking dish and spread evenly.
• Bake for 25 minutes or until a toothpick inserted into the center comes out clean.
• Allow to cool before cutting into bars.