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,
Lobster sauce sauce. The colour varies from being pale white, to a yellow, mainly depending on how the eggs are incorporated into the sauce; if the eggs are added quickly, the sauce acquires a yellow hue. Lobster sauce in most of New England, where it is a thicker, brown sauce, is the exception. It may have been named "lobster sauce" due to the fact that it derives from a similar family of sauces used in Cantonese cuisine that were traditionally poured over stir-fried lobster. It is also used over stir fried shrimp in a dish commonly known as Shrimp with Lobster Sauce