Hollow ball, also known as osmanthus egg, is one of the traditional points of Han nationality. It is made of eggs, starch and sugar, stirred and fried with water. It is golden in color and sweet in taste. Do not stick to plates, chopsticks and teeth, so it is called "three non-sticks". According to legend, Emperor Qianlong of the Qing Dynasty passed through Anyang in the south of the Yangtze River. Anyang county ordered the chef to carefully fry a plate of osmanthus eggs for the emperor. Qianlong was very happy and immediately ordered that the osmanthus egg be named "air ball". Let the county magistrate bring the cooking method into the royal kitchen. Since then, air balloons have become a royal dish.

The practice is also very common, and there is nothing complicated. Ingredients: fresh eggs 300g, sugar 100g. Seasoning: 50g of dry starch, 50g of cooked lard/kloc-0, 5g of sesame oil and 200g of clear water. Operation: 1. Break the egg, separate the egg white and yolk and put them in a bowl. Add white sugar and wet starch to a bowl with egg yolk, and stir well with chopsticks. 2. Wash the pot and put it on medium heat. When cooking, put a small amount of lard in the pot, put the pot on medium fire, pour in 100g cooked lard, and when the pot is heated to 60-90 degrees, pour in egg yolk liquid and stir quickly with a spoon. When the egg yolk liquid in the pot is mushy, stir fry with a spoon for about 10- 12 minutes, and slowly add the cooked lard to the pot wall, depending on whether the egg yolk paste becomes soft and thick from thin to thick. When the color is bright yellow, pour the sesame oil into the pot and put it on the plate. Now the traditional snack "air ball" is suddenly on fire again. The popularity of traditional snacks is a good thing, after all, it is also the inheritance of traditional culture.

Air ball, an old Beijing folk snack with a long history, has market value due to the precipitation of time. From aristocrats to vendors, air balloons in old Beijing have a long history of consumption. However, as an intangible cultural heritage, most of the traditional snacks welcomed by consumers come from the people. After years of polishing, they are deeply loved by ordinary people. This is the biggest advantage of old Beijing air ball, including more traditional snacks. In the catering industry, new categories and products have flourished and become a flash in the pan. Dirty bags, dark clouds ice cream, etc. Most of them will lack time to accumulate because of excessive pursuit of profits. Things that have no time to accumulate are useless even if they are delicious. They will be replaced by the next thing of the same type.

On the other hand, why are traditional snacks such as brown sugar, ice powder, pancake fruit and meat buns enduring for a long time? It is not how delicious they are, but that they have been baptized by time, implanted into the subconscious of consumers, and given the value of time.