Steamed Barbecued Pork Buns

To make these classic steamed rolls at home, you might pick up char siu—barbecued pork—in one of the myriad of Chinatown restaurants that have roast meats hanging in the window. Or you can make the Barbecued Pork and the buns a day or two later.

Fortunately, the buns themselves are easy to make, and they can be made as much as a month in advance: let them cool to room temperature after they’ve steamed (which should only take 15 minutes or so),