Yu Kwen Yick Chilli Sauce
Started by Mr Yu in 1922, Yu Kwen Yick's sauces are the stuff of Hong Kong legend. It would be hard not to find this deep orange bottle with its much-copied duck egg blue label on a Chinese chilli-lover's sauce rack. Preservative-free, this relish contains a deceptively simple combination of only seven ingredients - rice vinegar, chilli, salt, sugar, sweet potato, garlic and oil, but the results are delectable. Have it with prawn dumplings (har gow), fried turnip cake, tossed through noodles or anything that needs a little kick.
HK$28, Yu Kwen Yick, 8 Second Street, Sai Ying Pun
Suree Sriracha
Pad Thai and sriracha are globally synonymous with Thai food. However, unlike pad Thai, which was a government invention to foster patriotism, sriracha is a genuine Thai staple - named after the village in eastern Thailand where it was first made. Its popularity is evident: many Asian manufacturers now produce and package it in the same squeeze bottle, but Suree is a true Thai brand. The flavour of chillies really shines through and gives a good dose of heat, which is appeased by an obvious, but not overwhelming, amount of sugar.
HK$25, City'super, citywide
Lee Kum Kee Fine Chilli Sauce