Cuberdons are the purple, cone-shaped sweets sold from handcarts on the Groentenmarkt in Ghent, where locals call them neuzekes, 'little noses'. A thin, firm sugar crust encloses a syrupy raspberry centre, and they only stay that way for about three weeks before the inside crystallises, which is why they have never become an export. They are made with gum arabic, not gelatine, so they suit vegetarians and vegans. Making them at home is a fun weekend project: the syrup is poured into cone-shaped hollows pressed into a tray of dry cornflour, which slowly draws moisture out and forms the crust. Chef's tip: use a sugar thermometer and be exact; just a few degrees too low and the cones never form a crust, a few too high and they set solid all the way through.