Preheat and Prepare: Preheat your oven to 350°F (175°C). Grease a 9x5 inch loaf pan or line it with parchment paper.
Mash the Bananas: In a mixing bowl, mash the bananas using a fork or potato masher until smooth and free of large lumps.
Mix Wet Ingredients: Add the melted butter to the mashed bananas and stir well. Then, add the sugar, beaten egg, and vanilla extract. Mix until everything is well combined.
Add Dry Ingredients: Sprinkle in the baking soda and salt. Stir gently to combine. Gradually add the flour, stirring until the batter is smooth.
Fold in Chocolate Chips: Gently fold the chocolate chips into the batter until they are evenly distributed.
Pour and Bake: Pour the batter into the prepared loaf pan, spreading it out evenly. Bake in the preheated oven for 60 minutes, or until a toothpick inserted into the center comes out clean or with just a few crumbs.
Cool and Serve: Let the banana bread cool in the pan for about 10 minutes, then transfer it to a wire rack to cool completely before slicing.