Preheat Oven: Set your oven to 350°F and grease an 8x4-inch loaf pan.
Mash Bananas: In a bowl, mash those ripe bananas until smooth.
Mix Wet Ingredients: Stir in melted butter.
Add the Good Stuff: Toss in baking soda, salt, sugar, the beaten egg, and vanilla extract.
Fold in Flour: Mix in the flour gently, just until it’s combined.
Pour and Bake: Dump the batter into your prepared loaf pan. Bake for 55-65 minutes, or until a toothpick comes out clean.
Cool and Slice: Let it cool a bit before taking it out of the pan. Then slice and serve with a big grin.