Preheat oven to 350°F. Grease a loaf pan and set aside.
In a medium bowl, sift or whisk together flour, baking soda, and salt. Set aside.
1 ½ cups all-purpose flour, 1 teaspoon baking soda, ¼ teaspoon salt
In a separate large bowl, whisk together mashed banana, melted butter, sugar, egg, and vanilla extract.
1 ½ cups mashed banana, 6 tablespoons salted butter, ¾ cup sugar, 1 large egg, 1 teaspoon vanilla extract
Gradually add the dry ingredients to the wet ingredients, stirring just until combined. Fold in the chocolate chips.
1 cup miniature semi-sweet chocolate chips
Pour batter into the prepared loaf pan. Bake until the bread is golden brown and a toothpick inserted in the center comes out clean, about 55-65 minutes. Do not overbake.
Remove from the oven, unmold from the pan, and cool completely on a wire rack before slicing and serving.