Preheat the oven to 350 degrees Ferenheit, and line a bread loaf pan with parchment paper.
In a large bowl, mash together bananas until they become smooth, and add the rest of the ingredients (including the chocolate chips and walnuts if you are usinand mix well to combine.
Pour the batter into the loaf pan and bake in the oven for 50-60 minutes until the middle begins to firm. Test middle to ensure it is cooked through before removing from oven. Cool completely before eating.
Notes: This recipe freezes very well - I sliced it into individual pieces and froze them until I wanted to eat them- just take them out of the freezer and place in the fridge the night before, and they will be defrosted in the morning