Easy Ghana Banku Recipe. Banku is prepared with fermented corn dough and cassava dough ( Cassava/Yuca may be fermented or not fermented). Its distinct sour taste is a result of the fermentation process. Banku is commonly enjoyed alongside okro stew, although it can also be paired with various Ghanaian stews and soups. #ghanafood #recipeshub #ghanafoodrecipe #banku #bankuandstew #cookandshare