01 - Preheat oven to 350°F. Grease a 9x5-inch loaf pan and line with parchment paper for easy removal.
02 - Mash bananas in a large bowl until smooth. Whisk in eggs, oil or melted butter, sugar, and vanilla extract until well combined.
03 - In a separate bowl, whisk together flour, baking soda, and salt until evenly distributed.
04 - Add dry ingredients to wet mixture and stir gently until just combined. Do not overmix.
05 - Fold in chocolate chips and nuts if using.
06 - Pour batter into prepared loaf pan and smooth the top evenly.
07 - Bake for 50-60 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.
08 - Cool in pan for 10 minutes, then transfer loaf to a wire rack to cool completely before slicing.