In fact, the cookcakes sold by Wu Da Lang are not burnt cakes, but solid steamed buns. In Water Margin, it is written that when Pan Jinlian had not yet hooked up with Ximen Qing, Wu Dalang woke up early every morning and picked up a load of cooked cakes and went out to sell them. Before Wu Song left home to travel, once told his brother Wu Dalang said: you less outside, go home early; originally do cooking cakes ten fan cage, later just do five fan cage. The "fan cage" mentioned here is the steamer. From this, Wu Dalang sells the cooking cakes are steamed, therefore, the cooking cakes are definitely not baked, but steamed buns.