The snack is also known by a number of English names. Put chai pudding, Earthen bowl cake, Bootjaigo, Red bean pudding, Bood chai ko and the more direct but unofficial translation of Sticky rice pudding.
The pudding is made like other traditional steam cakes. It is said to have originated in Taishan, a county 140 km west of Hong Kong. The pudding reached its popularity peak in the early to mid- when sold it all over the streets in their push carts. At the time, there were only a small handful of flavors. One of the dish's cultural trademarks is that it is served in a porcelain bowl or an aluminum cup. The snack is still available today in select or snack shops, or from street hawkers. The pudding can also be served like an ice pop, held up by two bamboo sticks.
Classic Hong Kong flavors
* Plain white steamed sugar
* Brown sugar
* Plain white sugar with azuki beans
* Brown sugar with any one of the beans in the genus ''Vigna''