01 - Preheat your oven to 350°F. Grease a 9x5-inch loaf pan with butter or cooking spray, or line it with parchment paper for easy removal.
02 - In a large mixing bowl, whisk the mashed bananas and melted butter together until completely smooth and well incorporated.
03 - Add the granulated sugar, brown sugar, eggs, and vanilla extract to the banana mixture. Whisk vigorously until the mixture is uniform and slightly frothy.
04 - In a separate medium bowl, sift together the all-purpose flour, baking soda, and salt to ensure even distribution.
05 - Gradually add the dry ingredients to the wet mixture, folding gently with a spatula just until the flour disappears. Stop mixing as soon as combined to prevent a tough texture.
06 - Add the chocolate chips to the batter, reserving about 1 tablespoon for the topping. Fold gently to distribute evenly throughout.
07 - Pour the batter into your prepared loaf pan, spreading it evenly with a spatula. Sprinkle the reserved chocolate chips over the surface.
08 - Bake for 50 to 60 minutes. The bread is done when a toothpick inserted into the center emerges with a few moist crumbs but no wet batter. The top should be golden brown.
09 - Let the bread cool in the pan for 10 minutes to set. Carefully remove from the pan and transfer to a wire rack to cool completely before slicing.