Banana beer

Banana beer is an alcoholic beverage made from fermentation of mashed bananas. Sorghum, millet or maize flour are added as a source of wild yeast. In Uganda, banana beer is known as mubisi, in DR Congo as Kasiksi, in Kenya as urwaga, and in Rwanda and Burundi as urwagwa. Banana beer is sometimes consumed during rituals and ceremonies. A similar product called mwenge bigere is made in Uganda with only bananas and sorghum. It can also be found under the names kasiksi, nokrars, rwabitoke, urwedensiya, urwarimu and milinda kaki.

Source: Wikipedia