Preheat your oven to 350°F (175°C) and grease a standard loaf pan.

In a mixing bowl, mash the bananas until smooth.

Mix in melted butter, both sugars, and eggs until well combined.

In another bowl, whisk together flour, baking soda, and salt.

Gradually fold the dry ingredients into the wet mixture until just combined.

Pour the batter into the prepared loaf pan and bake for approximately 60 minutes or until a toothpick comes out clean.

Allow cooling for at least 10 minutes before slicing.