- Preheat your oven to 350°F (175°C) and grease a 9x5-inch loaf pan. 
- In a mixing bowl, combine the mashed bananas and melted butter. Stir until well mixed. 
- Add the baking soda and salt to the banana mixture and mix well. 
- Stir in the sugar, beaten egg, and vanilla extract until fully incorporated. 
- Gradually add the flour, mixing until just combined. Do not overmix. 
- Fold in the chocolate chips gently. 
- Pour the batter into the prepared loaf pan and smooth the top. 
- Bake for 60-65 minutes, or until a toothpick inserted into the center comes out clean. 
- Allow the bread to cool in the pan for about 10 minutes, then transfer to a wire rack to cool completely.