01 - Preheat oven to 350°F. Grease a 9x5-inch loaf pan thoroughly or line with parchment paper for easy removal.
02 - Whisk flour, baking soda, and salt in a medium bowl until evenly distributed. Set aside for later use.
03 - In a large bowl, whisk melted butter and sugar until smooth. Add eggs one at a time, beating well after each addition. Stir in vanilla extract and mashed bananas until fully incorporated.
04 - Gently fold dry ingredients into wet mixture using a spatula. Stop mixing as soon as flour streaks disappear—overmixing creates tough bread.
05 - Fold in chocolate chips until distributed throughout batter. Add chopped nuts if using.
06 - Transfer batter to prepared loaf pan. Use spatula to spread evenly and smooth the top surface.
07 - Bake for 50-60 minutes. Check for doneness by inserting toothpick into center—it should emerge with a few moist crumbs, not wet batter.
08 - Let bread cool in pan for 10 minutes. Remove from pan and transfer to wire rack. Cool completely before slicing for clean cuts.