wide range of foods including fruits, nuts, bulbs, leaves and other products gathered from wild plants and by the hunting of wild game. The introduction of domestic cattle and grain crops by Bantu speakers who arrived in the southern regions from central Africa since 10,000 BC and the spread of cattle keeping to Khoisan groups enabled products and the availability of fresh meat on demand. The pre-colonial diet consisted primarily of cooked grains, especially sorghum and millet, fermented milk (somewhat like yogurt) and roasted or stewed meat. At some point, maize replaced sorghum as the primary grain, and there is some dispute as to whether maize, a Central American crop, arrived with European settlers (notably the Portuguese) or spread through Africa before white settlements via Africans returning from the Americas during the era of the slave trade. People also kept sheep and goats, and communities often organised vast hunts for the abundant game, but the beef was considered the absolutely most important and high-status meat. The ribs of any cattle that were slaughtered in many communities were so prized that they were offered to the chief of the village. In many ways, the daily food of South African families can be traced to the indigenous foods that their ancestors ate. A typical meal in a Bantu-speaking, South African household is a stiff, fluffy porridge of maize meal (called pap, and very similar to American grits) with a flavorful stewed meat gravy. Traditional rural families (and many urban ones) often ferment their pap for a few days—especially if it is sorghum instead of maize—which gives it a tangy flavour. The Sotho-Tswana call this fermented pap, ting. Vegetables used are often some sort of pumpkin, varieties of which are indigenous to South Africa, although now many people eat pumpkins that originated in other countries. Rice and beans are also very popular although they are not indigenous. Another common vegetable dish, which arrived in South Africa with its many Irish immigrants, but which has been adopted by South Africans, is shredded cabbage and white potatoes cooked with butter. For many South Africans meat is the center of any meal. The Khoisan ate roasted meat, and they also dried meat for later use. The influence of their diet is reflected in the common Southern African love of barbecue (generally called in South Africa by its Afrikaans name, a braai) and biltong (dried preserved meat).