Tartar sauce
Tartar sauce is a condiment made of mayonnaise, chopped pickles, capers and olives. Tartar sauce can also be enhanced with the addition of gherkins, other varieties of pickles, and lemon juice as well as herbs such as dill and parsley.
It is most often used as a condiment with seafood dishes such as fish and chips, clam strips, fried oysters, fish sandwiches, and fish fingers, among many other dishes.Composition
Tartar sauce is based on either mayonnaise or aioli, with certain other ingredients added. In the UK, recipes typically add to the base capers, gherkins, lemon juice, and dill. US recipes may include chopped pickles or prepared green sweet relish, capers, onions, and fresh parsley. Chopped hard-boiled eggs or olives are sometimes added, as may be Dijon mustard and cocktail onions. Paul Bocuse described sauce tartare explicitly as a sauce remoulade, in which the characterising anchovy purée is to be replaced by some hot Dijon mustard.