Fish sauce are made with anchovies, mackerel, scabbard fish and salt. The bigger the fish, the more mercury you might expect, especially if predator fish like scabbard fish. They do not have any additives like sugar, hydrolyzed protein, or preservatives. Vietnamese prefer sauces without a strong smell, and transparent with a deep golden amber color. "First press" fish sauce, meaning the sauce is bottled from the first time the fermenting barrels are drained, also indicates quality. Lastly, when measuring the nitrogen level of fish sauces (N), most fish sauce on the market falls within the mid 20N range. Anything over 30N is
Velouté sauce Velouté sauce A velouté sauce () is a savoury sauce, made from a roux and a light stock. It is one of the five "mother sauces" of French cuisine listed by Auguste Escoffier in the 19th century, along with espagnole, tomato, béchamel and hollandaise. The term "velouté" is the French word for velvety. In preparing a velouté sauce, a light stock (one in which the bones used have not been previously roasted), such as chicken or fish stock, is thickened with a blond roux. Thus the ingredients of a velouté are equal parts (by mass) of butter and flour to