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,
Sauce Sauce In cooking a sauce is a liquid, cream, or semi-solid food served on or used in preparing other foods. Sauces are not normally consumed by themselves; they add flavor, moisture, and visual appeal to a dish. "Sauce" is a French word taken from the Latin "salsa", meaning "salted". Possibly the oldest recorded European sauce is garum, the fish sauce used by the Ancient Greeks; while doubanjiang, the Chinese soy bean paste is mentioned in "Rites of Zhou" in the 3rd century BC. Sauces need a liquid component. Sauces are an essential element in cuisines all over the world. Sauces