Yes, you are reading correctly, there is vinegar in the batter - it ensures that the pancakes are not rubbery. The longer the mixture stands, the better it is. Store in the refrigerator for up to 1 week.
A traditional South African meal that is good winter fare. The gravy is rich, thick, full-bodied and is obtained by using meat with a lot of bone and fat, rolled in flour and browned before vegetables are added.