If you've ever had soup dumplings or xiao long bao, the "soup" inside each dumpling is actually a heated and liquified pork-stock aspic. In fact, when you make soup dumplings, you have to create a ...

Occasionally, crab meat is inside, but more often, soup dumplings are stuffed with pork and aspic -- that last is a gelatin made with collagen-rich pork trimmings. The aspic is combined with ...