Banane pèse (mashed green banana)

Instructions

1. Peel the green bananas by cutting them lengthwise under water so the sap doesn't stain your hands.
2. Cut them into pieces and cook them in boiling salted water for 20 minutes, until a knife blade passes through them easily.
3. Drain them thoroughly and mash them with a pestle or fork in a dish.
4. Gradually add the melted butter and oil, working the dough as you go.
5. Knead until you get a smooth, even, slightly elastic texture.
6. Shape into balls or serve as a purée, with grilled meat or fish.