Preheat the oven to 350º. In a large bowl combine flour, baking soda and salt. In a separate bowl, mix butter and brown sugar together. Once combined, add eggs and mashed bananas to butter mixture. Stir until well combined then slowly add to flour mixture, mixing until well blended.
Optional: add in chocolate chips, raisins, or nuts to fully mixed batter!
Lightly grease a 9in x 5in loaf pan and pour batter into pan. Bake in preheated oven at 350º for 55-60 minutes, until a toothpick inserted into the center of the loaf comes out clean. Let bread cool for 10 min and remove from loaf pan. Enjoy!