Phu quoc fish sauce waters around The island are rich in seaweed and plankton which provide food for the anchovy population. However, it only since the late 1950s that the product has been recognized outside of its home island, reaching its zenith of popularity between 1965 and 1975. With increasing government subsidies of many industries in the period from 1975 to 1985, the local fish sauce craft lost market share to larger competitors, but in recent years, the popularity of the authentic Phu Quoc product has been rebounding. In 2012, Phu Quoc fish sauce was granted a European Union Protected Designation of Origin (PDO)
Chaudfroid sauce Madeira wine, which is cooked and reduced to a sauce consistency. Some simpler preparations of chaudfroid sauce omit the use of meat, and these can be prepared as a brown sauce, a white sauce and as a red sauce using tomato purée. A simpler preparation of chaudfroid sauce without the use of meat can be made by using espagnole sauce, adding ingredients such as aspic jelly, gelatin, cream and sherry to it, and cooking the mixture. Another simpler preparation technique that lacks meat involves the use of allemande sauce or velouté sauce and other ingredients. A sweet version of chaudfroid