Preheat the oven to 350°F (175°C)
Grease a loaf pan
Mash ripe bananas in a bowl
Mix in melted butter
Add sugar
Add beaten eggs
Add vanilla extract
Stir in flour
Add baking soda
Add salt
Mix until just combined
Pour batter into the loaf pan
Bake for 50 to 60 minutes
Check doneness with a toothpick
Let the bread cool in the pan
Remove from the pan and slice