Soak the beans overnight. Cook them in soaking water the following day until they are easily crushed with a fork. It is essential to cook them without salt, otherwise the beans will not become soft.
Heat 2 tablespoons of palm oil in a frying pan. Add the very finely chopped onions and fry briefly. Puree the bean mixture, preferably with a potato masher. Make sure there is not too much water in the pot.
Mix 100 g tomato paste with water, add salt and chilli pepper, stir and stir into the bean mixture. If the bean paste has become too thin, let it cool down in a closed pot and then reheat it.
Otherwise serve warm bean porridge with the plantains.
Before: Peel the plantain and cut into slices. Add oil and the rest of the palm oil to the pan. Fry until crispy.