Preheat your oven to 350°F (175°C) and grease a 9x5 inch loaf pan.

Mash the two ripe bananas in a large mixing bowl until smooth.

In a separate bowl, combine melted butter (or oil), brown sugar, egg, and vanilla extract. Whisk until creamy.

Whisk together the flour, baking soda, and salt in another bowl.

Gently mix the wet ingredients into the dry ingredients until just combined.

Transfer the batter to the prepared loaf pan and spread it evenly.

Tap the loaf pan on the countertop a few times to release air bubbles.

Bake in the preheated oven for 45-55 minutes or until a toothpick comes out clean.

Let cool in the pan for about 10 minutes before transferring to a wire rack.