Linxia pot helmets are a specialty of Linxia City, Linxia Hui Autonomous Prefecture, Gansu Province. Linxia Guokui uses fermented flour as the main ingredient. Depending on the auxiliary ingredients, such as scallion oil and sugar, it can be divided into scallion oil type, sugar cake type and white cake type.

Guokui is the most common traditional pastry food in Linxia. It uses fermented flour as the main ingredient. It can be divided into scallion oil type, sugar cake type and white cake type according to different auxiliary materials such as scallion oil and sugar. Making Guokui is highly technical and the baking method is unique.

When making, first put edible alkali into the dough, add dry flour while kneading, repeat several times, knead it into a dough with your hands, knead it into a triangle and apply onion, oil, and sweet bean fillings Or sugar filling, spread evenly, roll and flatten into a round shape, use a special hammer to make a hollow in the middle. Put the prepared white pot helmet into a special iron pot and cook it. The bottom of the two-layer pot can be set on fire. Put the flour cake in the bottom pot. When the surface of the pot is yellow and crispy, take it out and put it on the second-layer flat pot and rotate it. Repeat several times to get it out of the pot. Guokui has the characteristics of yellow and crispy skin and soft inner flesh. It can be stored at home and travel for a long time without deterioration. The aroma of scallion oil will not fade away after being stored for more than ten days.