Vendors judge doneness by tapping a piece against the pan; a hollow knock means the starchy centre is cooked through.
Boiled cassava chunks are fried until the outside turns crisp and golden while the inside stays soft and starchy, then served hot with a wedge of lime and a scoop of kachumbari. In downtown Dar neighborhoods like Kisutu and Upanga, vendors run cassava stalls from early morning through the evening rush.