what is tartar sauce made of
Composition [edit]. It is based on mayonnaise (egg yolk, mustard or vinegar, oil) with some extra ingredients. In the UK, recipes typically add to the base capers, gherkins, lemon juice, and tarragon. US recipes may include chopped pickles or prepared green sweet relish, capers, onions (or chives), and fresh parsley.he sauce and its name have been found in cookbooks since the 19th century. The name derives from the French sauce tartare, named after the Tatars (Ancient spelling in French of the ethnic group: Tartare) from the Eurasian Steppe, who once occupied Ukraine and parts of Russia. Beyond this, the etymology is unclear.