Start by rinsing the palm kernel seeds thoroughly and, after rinsing, boil them. Whilst waiting for the palm kernel seeds to cook, start peeling the vegetables. After peeling the vegetables, pound the mixture of spices (green pepper, hot pepper, garlic, black pepper and sliced onions), which is called nokoss.
When the palm kernel seeds are well cooked, pound them. After beating the palm kernel seeds, pour hot water over them, mix it a bit and sieve it. After thoroughly sieving the palm kernel seeds, put the liquid to boil again.
Start working with the smoked fish by removing the scales, tiny bones, and unwanted particles. After the smoked fish is prepared, wash the catfish. Next, add roughly sliced vegetables, tomato paste, nokoss, palm oil, and cleaned fish to the boiling mixture of palm kernels—cook for a while. After everything is cooked well, serve it as a sauce with a bowl of boiled rice.