Butter, also known as cream oil, is a solid oil processed from milk, and a dairy product made from fresh or fermented whipped cream or milk by stirring.

Butter is light yellow in color, even and delicate in texture, with no moisture oozing from the cut surface, unique and pure in taste and rich in nutrition, and has the function of increasing heat and prolonging life. Huns are the earliest people who processed edible butter in the world. Butter can be divided into unsalted butter, salted butter, spread butter and flaky butter according to different tastes and shapes. Butter is rarely eaten directly Usually used as an auxiliary material for cooking food, it is a common material for making cakes and biscuits. It can also be used for cooking, such as frying fish, steak, baking bread or spreading bread. The historical records of butter can be traced back to ancient times five or six thousand years ago, and can be found in some ancient Indian books and works of ancient Greek writers. However, at that time, people did not regard butter as food, but as medicine, cosmetics and sacrifices to the gods. Butter was first invented by a few people living in grasslands and cold north. As a kind of food, it has a solemn position, because it is scarce and precious.