A walnut is the nut of any tree of the subfamily Juglans. This nut is single-seeded, rounded and stone fruit of the walnut tree often used for the meat once it’s fully ripe. Walnuts are those creamy nuts in dark brown to black fragile shells, tied in transparent nylons, hawked in Nigerian traffic. Often served as a snack, in Nigeria, walnuts are called Okwe, Ukpa or Asala.

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