Pesto became a staple in the Ligurian culinary tradition, with each family often featuring its own pesto recipe (with slight differences to the traditional ingredients). This is the main reason why pesto recipes often differ from each other. In 1944, "The New York Times" mentioned an imported canned pesto paste. In 1946, "Sunset" magazine published a pesto recipe by Angelo Pellegrini. Pesto did not become popular in North America until the 1980s and 1990s. Pesto is traditionally prepared in a marble mortar with a wooden pestle. First, garlic and pine nuts are placed in the mortar and reduced to a cream,
Onion sauce or simmer the mixture to create a sauce. Some preparations involve frying the onions until they are browned, while others do not brown the onions. Onion sauce can be used to complement many foods, such as potatoes and peas, meats, such as pork, duck, rabbit, mutton, and liver, such as calf liver. Onion sauce prepared with bread crumbs may be used as a stuffing, which can be used in various poultry dishes, such as goose. Cebolada is a Portuguese onion stew, onion sauce or paste that is prepared with onion as a primary ingredient. It is used on several Portuguese