Moment in Peking, by Lin Yutang

Now, the grandmother had brought from Shantung some country- style tsungtse. These were solid triangles made of glutinous rice stuffed with ham and pork or black sugar and bean flour, and wrapped in bamboo leaves and steamed. She had these made specially, although the Dragon-Boat Festival was long past, because she knew that her grandchildren and indeed the whole family loved them. Pingya had been fond of the village tsungtse ever since his childhood, and at supper of the seventh day after the wedding he wanted them so much that Mannia could not refuse him.