Rob is the most frequently met product made out of fermented milk in Sudan. It is actually what others may know as “buttermilk”, as rob is obtained by allowing fresh milk to ferment overnight, which will provide the sour milk that is furthermore churned into butter. The liquid that is left behind represents rob or buttermilk for people in other parts of the world. Rob started to be made by the nomadic tribes of Sudan, as they were the ones that owned livestock. Most of it is