Tunxi sesame seed cake is also called "Rescue Tribute Cake", "Huangshan Crab Shell Yellow" or "Huizhou Sesame Seed Cake". Tunxi sesame seed cake is 6 cm in auspicious shape, and its color resembles the "big crab" refined by cooking and frying. Its skin is crisp and fragrant, its outside is loose and its inside is crisp, its salty flavor is palatable, and it is deeply loved by local people. It is also a famous tourist spot with traditional characteristics in Huizhou area of southern Anhui.

There is a little-known story about Tunxi baked wheat cake: It is said that when Zhu Yuanzhang was at war with Chen Youliang in the early Ming Dynasty, he was defeated and fled to Huizhou in southern Anhui. At that time, Zhu Yuanzhang was sad and hungry, and took refuge in a farmer's house. When the housewife saw the arrival of the rebel army, she enthusiastically took out her favorite baked wheat cake to satisfy her hunger. He was still hungry after eating seven or eight baked wheat cakes. Afterwards, I was full of praise for the crispy sesame seeds. Later, after Zhu Yuanzhang became the founding emperor, he still didn't forget the farmer's saving his life, and he made great contributions to the rescue, and happily gave the royal name "Rescue Tribute". Since then, the production technique of "Rescue Tribute Cake" has become a household name and is well-known, and gradually passed down among the people in Huizhou, southern Anhui.

Tunxi sesame seed cake is not only a cheap and good food in Huizhou mountainous area, but also a dry food, a family affection and a yearning for Huizhou merchants who went to the end of the world in those days. Huizhou folk song "I was born in Huizhou, thirteen or fourteen years old, but I lost it abroad". Huizhou merchants left their homes and went out to do business, wading all the way and eating irregularly. They have always been thrifty and embarked on the road of doing business. Apart from the baggage and umbrella, they brought this "Tunxi sesame seed cake" as dry food. This dry food is not only easy to carry and eat, but also has strong hunger resistance, and it is not easy to deteriorate. It can still be eaten after being stored for ten days and a half months, and it is as crisp as new. Although Tunxi sesame seed cake is made by mother or wife, it is full of nostalgia and affection, which encourages Huizhou businessmen to fight in the shopping mall without fear of difficulties and setbacks. Therefore, the people of Huizhou said humorously: "In the glorious history of Huizhou merchants in those days, we should also remember the contribution of" Tunxi sesame seed cake "!" The production technology of Tunxi sesame seed cake has also spread all over the north and south of the river with the "no emblem" of Huizhou merchants, resulting in the appearance of similar foods in Jiangsu, Zhejiang and Shanghai.

Tunxi sesame seed cake is very exquisite in manufacturing technology. First, it is made by selecting the finest white flour, fattening loin, dried plum, sesame seeds, refined salt and vegetable oil, respectively making skin, soaking noodles, kneading noodles, crunching, picking blanks, making skin, stuffing, closing and baking. The baking is carried out in a special furnace, burning charcoal internally, and baking the cake blanks.

Tunxi sesame seed cake has the characteristics of many layers but thin, yellow but not burnt, crisp but not greasy. Tunxi sesame seed cake with unique flavor, salty and crisp flavor will surely attract a large number of Chinese and foreign Expo visitors to Huangshan Mountain and visit Tunxi Old Street, one of the top ten historical streets in China. Tourists will taste it while walking, and they will be full of food and praise, and they will be sold back to their relatives and friends to taste delicious food. Tunxi sesame seed cake is as famous at home and abroad as the "Hui Mo Su" food in the old street.