01 -
Preheat oven to 175°C (350°F). Grease and line an 8x8-inch baking pan with parchment paper.
02 -
In a large mixing bowl, combine the mashed bananas and melted butter. Whisk until smooth. Add both brown and granulated sugars, mixing until well combined.
03 -
Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next. Stir in the vanilla extract.
04 -
In a separate bowl, whisk together the flour, cocoa powder, baking soda, and salt until evenly combined.
05 -
Gradually add the dry ingredients to the wet mixture, stirring until just combined. Avoid overmixing to maintain proper texture.
06 -
If using, gently fold the nuts and/or chocolate chips into the batter until evenly distributed.
07 -
Pour the batter into the prepared baking pan and spread evenly using a spatula.
08 -
Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
09 -
Remove from oven and let cool in the pan for 10 minutes.
10 -
Use the parchment paper to lift the brownies out of the pan. Allow to cool completely on a wire rack before slicing.