Tartar sauce garlic, lemon juice), with certain other ingredients added. In many places, cream of tartar is used. 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 (or chives), and fresh parsley. Chopped hard-boiled eggs or olives are sometimes added, as may be Dijon mustard and cocktail onions. Paul Bocuse describes sauce tartare explicitly as a sauce remoulade, in which the characterising anchovy purée is to be substituted by some hot Dijon mustard. The sauce and its name have been found in cookbooks
History of the hamburger in the United States toppings include fried egg, scrambled egg, feta cheese, salsa, pineapple, Jalapeños and other varieties of chile peppers, anchovies, slices of ham or bologna, pastrami, or teriyaki-seasoned beef, tartar sauce, french fries, onion rings, or potato chips. Standard toppings on hamburgers may vary depending upon location, particularly at restaurants that are not national or regional franchises. A "Texas burger" uses mustard as the only sauce, and comes with or without vegetables, jalapeno slices, and cheese. In New Mexico and parts of the Southwest, green chile burgers are very common. In the Upper Midwest, particularly Wisconsin, burgers are often made with a