When I think of an easy, crowd-pleasing thing to bring back from South Africa, pinotage wine is a good pick because it does not need much explanation when you hand it over. Wine is a great memory of a meal, but I would wrap it carefully and only carry it when the luggage situation makes sense. I would look for it in a proper local supermarket, covered market, deli, pharmacy, gift shop or small producer rather than leaving it until the departure gate. Back in the UK, it is worth checking specialist shops first because they often stock a better version than a broad marketplace listing. I would rate it higher when it is locally made, clearly labelled and easy to use at home, and lower when it is just tourist packaging.