Preheat your oven to 350°F (175°C).
Grease a loaf pan to prevent sticking.
Combine the mashed bananas, melted butter, vanilla extract, beaten egg, and brown sugar in a bowl.
Mix well until smooth.
In another bowl, whisk together the flour, baking soda, and pinch of salt.
Make sure to remove any lumps.
Gradually add the dry ingredients to the banana mixture.
Stir gently until just combined, being careful not to overmix.
Pour the batter into the prepared loaf pan.
Smooth out the top, and place it in the oven.
Bake for 60-70 minutes until golden brown.