The meal originated in Guangzhou, Guangdong, where rice is cooked as a casserole, while Guangdong calls the casserole as a casserole, which is why it is called a casserole. The historical origin of the meal goes back more than 2000 years to the Middlewon region, where, according to books such as Deeds of Deeds, the first, second and best of the eight children of the Zhou generation were treated as such, except for the use of yellow rice as a raw material, which at the time was a rather expensive one。