The tenderloin of Aunt Guo's Moon buns is chicken breast. Aunt Guo's moon buns were called "giant Chinese hamburgers" by netizens, and hot dog sausages, tenderloin, bean skin and lettuce almost burst into white buns. The tenderloin in the steamed bun is chicken breast, which is sliced thin, added with starch, Orlean powder, cooking oil and marinated.