Peel and mash the bananas.
Add eggs and sugar to a bowl, then mix well.
Add the mashed bananas and melted butter, and mix together.
Sift in flour, baking powder, and salt; mix until just combined.
Pour the batter into a baking pan lined with parchment paper.
Bake in a preheated oven at 180°C for 40–50 minutes.