Preheat oven to 325°F (160°C).

Grease an 8 x 4-inch loaf pan.

In a large bowl, whisk together flour, salt, and baking soda.

In a second bowl, mash ripe bananas.

Add sugar to the mashed bananas and stir well.

Add the egg and melted, cooled butter to the banana mixture.

Stir to blend the wet ingredients.

Pour the wet ingredients into the dry ingredients.

Mix until just moistened; do not overmix.

Pour the batter into the prepared loaf pan.

Bake for 55 to 60 minutes, or until a wooden skewer inserted into the center comes out clean.

Let cool in the pan for 10 minutes.

Turn the bread onto a wire rack to cool completely.