Pesto been used for all sorts of cold sauces or dips, mostly without any of the original ingredients: arugula (instead of or in addition to basil), black olives, lemon peel, coriander, or mushrooms. In more northern countries, ramson leaves are sometimes used instead of basil. In the 19th century, Genovese immigrants to Argentina brought pesto recipes with them. A Peruvian variety, known as "tallarines verdes" (meaning "green noodles", from Italian "tagliarini"), is slightly creamier, lacks pine nuts (because of their rarity and prohibitive cost in Peru), may use spinach and vegetable oil (in place of olive oil), and is sometimes served
Suprême sauce Suprême sauce "Suprême" sauce is one of the classic "small sauces" of French cuisine, that is, one made by combining a basic or mother sauce with extra ingredients. Traditionally, this sauce is made from a "velouté" sauce (a roux sauce made with a meat stock - in the case of "suprême", a chicken stock is usually preferred), reduced with heavy cream or "crème fraîche", and then strained through a fine sieve. This is the recipe as used in "Larousse Gastronomique", a seminal work of French "haute cuisine", first published in 1938. A light squeeze of lemon juice is commonly added.