Pasta tomato sauce, garlic and herbs. In Northern Italy "white sauce" is more common. However Italian cuisine is best identified by individual regions. Pasta dishes with lighter use of tomato are found in Trentino-Alto Adige and Emilia Romagna. In Bologna, the meat-based "Bolognese sauce" incorporates a small amount of tomato concentrate and a green sauce called "pesto" originates from Genoa. In Central Italy, there are sauces such as "tomato sauce", "amatriciana", "arrabbiata" and the egg-based "carbonara". Tomato sauces are also present in Southern Italian cuisine, where they originated. In Southern Italy more complex variations include pasta paired with fresh vegetables, olives,
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,