This reading is "China Cuisine", and Jack is a foreigner. He doesn't know the traditional culture of China. Because Jack doesn't know the traditional culture of China, Jack makes many jokes.

In Jack's mind, moon cakes are just like ordinary cakes, and they are only eaten once a month. In this case, there are many foreign friends' views on moon cakes. They all think that the fillings in moon cakes are rich and sweet, and there are various kinds of moon cakes.