The legend of instant-boiled mutton originated in Yuan Dynasty. In those days, Kublai Khan, the commander of Yuan Shizu, made an expedition to the south. One day, people were exhausted and hungry, and he suddenly remembered the dish in his hometown-stewed mutton, so he ordered his men to kill the sheep and burn the fire. Just as the cook was slaughtering sheep and cutting meat, the reconnaissance Ma Chong reported that the enemy was approaching. Hungry, Kublai Khan wanted mutton very much. He ordered his troops to March and shouted, "Mutton! Mutton! " The cook knew that he had a bad temper, so he used his quick wits. He cut off more than ten thin pieces of meat with a flying knife and stirred them in boiling water several times. When the color of the meat changed, he immediately fished it out and put it in a bowl and sprinkled it with fine salt. Kublai Khan ate several bowls in a row, turned over and mounted his horse to meet the enemy. As a result, he won a great victory.