The meat wrapped in the dough is shredded pork in Beijing sauce, and is eaten in spring pancake buns. That said, in the 1930s in old Beijing, in the Forbidden City northeast of more than 4 miles in a large courtyard, lived an old man making tofu, surnamed Chen, he and his 4-year-old grandson, the dog life, life is difficult.

Chen old man to make tofu is a masterpiece of craftsmanship, very popular with the neighbors, even the Wangfujing duck store Wacai County division captured also Mu Dong to come, Ji Lai simply let Chen old man every day to send 4 boards of tofu, 5 pounds of tofu skin to the duck store.

Chen Laohan fried with tofu, a little thinner pork cut into shreds, with tofu skin cut into squares instead of pastry, rolled into roast duck, after continuous improvement, only today's rich sauce, tender shredded meat Beijing sauce shredded pork.