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
Caruso sauce Caruso sauce Caruso Sauce or Salsa Caruso is a warm sauce made of cream, ham, cheese, nuts and mushrooms. It is served with pasta (typically cappelletti). Caruso sauce was first created in the 1950s in Uruguay, South America, by Raymundo Monti of the restaurant 'Mario and Alberto', located at the intersection of Constituyente and Tacuarembó Streets in Montevideo. Monti wanted to create a new recipe following the current traditions of Italian cuisine. The dish was named in honor of the famous Neapolitan tenor Enrico Caruso (1873–1921) who was a popular figure in South America during his tours of the 1910s.