The traditional South African maize porridge is called pap.
Pap is made by cooking ground maize meal with water until it reaches a porridge-like consistency. It is a staple food in South Africa and can be prepared in textures ranging from soft and smooth to firm and crumbly.
Soft pap is commonly eaten as a breakfast porridge, sometimes with milk, sugar, or butter. Firmer versions are served later in the day with meat, vegetables, sauces, or relishes. The word and preparation vary across South African languages and communities, so regional names can appear alongside pap.
Pap belongs to a wider family of maize-meal porridges across southern and eastern Africa. Sadza is especially associated with Zimbabwe, while ugali is widely used in East Africa. These foods are related, but the question’s South African context identifies pap as the intended answer.