In Kumasi's chop bars the pounding is often a two-person, cross-rhythm job — one person turns and folds the dough between strikes while the other swings the pestle, timed so a hand is never in the mortar when it comes down.
Boiled cassava and plantain are pounded together in a wooden mortar until smooth and stretchy, then served in a bowl of nkatenkwan — a rich soup built on roasted peanut paste, often with goat meat or fish. Kumasi's chop bars treat it as close to non-negotiable, especially on Sundays.