Preheat the oven to 180°C (356°F).
Mash the bananas with a fork.
In a bowl, mix the bananas, sugar, eggs, and butter together.
Add sifted flour, baking powder, and salt, and mix well.
Pour the batter into a loaf pan.
Bake in the preheated oven for 40–50 minutes.
Remove the bread from the pan and let it cool on a wire rack.