- Preheat oven to 350˚F (180˚F).
- In a bowl, add the bananas and mash until smooth. Add in the melted butter and stir until well combined.
- Add the sugar, egg, vanilla, baking soda, salt, and flour, and stir until the batter is smooth.
- Add in the chocolate chips and pour the batter into a greased loaf pan. Top with additional chocolate chips.
- Bake for 50 minutes to an hour, or until a toothpick comes out clean.
- Cool completely before serving.