Chili oil jars, although it may also be made from scratch at home. It is usually available by request at Chinese restaurants. Chili oil has various names in China. It is called (chili pepper splashed with oil) in Shaanxi province and 辣油("spicy oil") or 紅油("red oil" ) in Sichuan province. Among those names the most popular one is 辣椒油("chili pepper oil"). In China, chili oil is prepared basically by pouring hot vegetable oil slowly on chili pepper powder or chopped chili pepper. Many other ingredients can be added alongside to enrich flavor such as Chinese black vinegar, minced garlic, dried ginger skin,
Chili sauce distilled vinegar, garlic, sugar, and salt. It is named after the coastal city of Si Racha, in the Chonburi Province of Eastern Thailand, where it was possibly first produced for dishes served at local seafood restaurants. A type of chili sauce is Thai sweet chili sauce, which is used as a dipping sauce, a marinade, and for cooking, such as in stir fried dishes. The company Mae Ploy is a major manufacturer of Thai sweet chili sauce. Most major supermarket chain stores in North America carry Thai sweet chili sauce. Some versions of "Nam phrik", a range of chili-based, hot