Ogbono is the dried, oil-rich kernel of the African bush mango (Irvingia gabonensis, and the closely related I. wombolu), a West- and Central-African forest tree whose fruit looks and tastes like a small mango. Ground to a paste or powder, the seed is the prized thickener of ogbono soup — a slippery, "drawing" Nigerian stew — and is also pressed into a hard vegetable fat known as dika butter or dika bread.