Just went shopping. Big mistake. Everywhere I looked I saw these.
粽子 (zòng zi).
Traditionally, eaten on The Dragon Boat Festival (tomorrow), they are glutinous rice balls stuffed into bamboo leaves. The rice is flavoured with other ingredients such as pork or chestnuts (or both). There are also sweet versions.
Many people make their own, but it seems that is falling away, judging by the number of people buying them today.
I can't stand the things. The taste is ok but the texture and the stickiness is not pleasant to me. Millions disagree!