It is said that the creator of salty pancakes is Master Tan Zao, who was engaged in dim sum making at Dechang Teahouse on Longjin Road as early as the 1930s. He wanted to create a delicious snack, but the taste was always mediocre and he did not make much progress. One day, Master Tan Zao went to the teahouse for tea and met Blind Gongde who was selling fermented soy sauce meat, and he complained to him. Blind Gongde naturally sighed and said with a smile: "Brother De, in fact, this salty pancake is the same as my peanuts? In the past, people did not know to add fermented soy sauce, so it could not become a famous food. Once fermented soy sauce was added, the taste immediately changed and its value increased a hundredfold." After hearing what Blind Gongde said, Master Tan was greatly inspired. The salty pancake fried with this new ingredient is indeed golden in color, crispy on the outside and fragrant on the inside, soft and smooth in the mouth, and has the fragrance of fermented soy sauce. Today, Master Wu Nanju's improved salty pancake with frankincense is more in line with the taste of modern people, with a crispy texture and rich fragrance.