Tartar sauce is based on either mayonnaise (made from egg yolk, mustard or vinegar, oil) or aioli (made from egg yolk, olive oil, garlic, lemon juice), with certain other ingredients added. In the UK, ingredients such as capers, gherkins, lemon juice and dill are added. US recipes may include chopped pickles, capers, chives and fresh parsley. Chopped hard-boiled eggs or olives are sometimes added, as may be Dijon mustard and cocktail onions. The sauce can be served with Batter-fried Calamari Rings, Best-ever Batter-fried Fish, Prawn Tempura (Batter-fried Prawns), Tuna Fish Cakes, etc.
- Combine the ingredients for the tartar sauce in a mixing bowl.
- Transfer the sauce to a serving dish, cover and refrigerate until ready to serve.