What is the anhydrous butter in the purple rice and red bean bread in the farmer's wheat field?

The anhydrous butter in the purple rice and red bean bread in the peasant wheat field is yellow grease made of butter, also called butter. Anhydrous ghee is mainly used to make food: bread, cakes, biscuits, etc. It can also be eaten as edible oil, but it tastes different from ordinary edible oil. The purple rice and red bean bread in farmers' wheat fields needs butter.