Mash the bananas.
Mix the eggs and sugar together.
Add vegetable oil and milk, then mix.
Sift in flour, baking powder, and salt.
Gently fold the mashed bananas into the batter from the previous step.
Fill the muffin molds with the batter.
Bake in a preheated oven at 180°C (356°F) for 20–25 minutes.