Excuse me: How did Su Dongpo invent Dongpo elbow?

Dongpo elbow is one of the classic traditional dishes of Han nationality in China and Sichuan, belonging to Sichuan cuisine. Dongpo elbow is actually not Su Dongpo's work, but his wife Wang Fu's masterpiece. "Dongpo elbow" is called Su Dongpo, and it is also a famous Sichuan dish. This is because "Dongpo elbow" comes from Su Dongpo's hometown, Dongpo District, Meishan City, Sichuan Province. Dongpo elbow was originally invented by Wang Fu. On one occasion, Su Dongpo's wife Wang Fu stewed her elbow at home, which was yellow and sticky. She quickly added various ingredients and cooked carefully to cover up the burnt smell. Unexpectedly, the taste of the yellow elbow was unexpectedly good, and Su Dongpo was suddenly overjoyed. Su Dongpo not only cooked repeatedly by himself, left a record, but also vigorously promoted it to relatives and friends, so the "Dongpo elbow" was passed down from generation to generation.