Rinse and soak dry whole chilli pepper, shombo and Cameroun pepper in water overnight or in boiling water for 2 hours until soft. Use just enough water to cover them.
Meanwhile prepare the other ingredients.
In a blender, place 2 small onions, peppers, peeled ginger and garlic, add the soaking liquid and grind into a puree. Set aside.
Heat palm oil in a dry pot until very hot, add sliced onions and fry until it floats on top and starts to caramelize, turning brown.
Pour pepper mix into the hot oil, add crayfish and seasoning cubes, stir.
Reduce the heat and fry until it dries stirring very often about 30 minutes or more.
Taste for salt and sourness and correct, take off the heat.
Serve with agonyi beans.