Wash the bambara nuts and place them in your cooking pot.
Add enough boiling water to cover the nuts. Cover the pot and let it sit for about 20 – 30 minutes before starting to cook.
After 20 minutes, add in the potato, pepper, onion, garlic, tomato, and herbs. Start cooking the bambara nuts. You will need to keep a watchful eye and top up the water when needed until the Bambara nuts soften up.
Once the veggies and herbs have to soften up, remove, blend, and put back in the pot. Sometimes the veggies and herbs soften up so much that they disintegrated into the sauce. In this case, you just discard any unwanted peels or stems.
Lightly mash some of the Bambara nuts into the sauce. If you find it a bit too thick, loosen it up with some hot water.
Season the sauce with a pinch of salt, sugar, and shea butter or coconut oil. If using shea butter, this must be very fresh and edible.
Serve the aboboi with some kayaker, tale, kelewele, or boiled ripe plantains