The people of Nigeria, like those in most West African countries, rely mainly on a filling porridge, made of cassava, millet, cornmeal or rice. Balls of porridge are dipped in a spicy sauce of vegetables, meat, or fish. Celebrations such as weddings call for special foods and a cow or several goats might be killed so that all the guests are well-fed. In Jos, Nigeria, on Christmas day, neighbors exchange large pots of chicken stew.