Put chai ko is a popular snack in Hong Kong. The pudding cake is palm size and is sweet in taste. It is soft, but can hold its molded shape outside of a bowl. The cake is made from white or brown sugar, long-grain rice flour with a little wheat starch or cornstarch. Sometimes red beans are also added. The batter is poured into porcelain bowls and steamed until cooked through. Then it is let cooled and served at room temperature. Traditionally, the hawker inserts two bamboo skewers into the cake to turn it out and the eater holds the skewers to consume. But nowadays, most Put Chai Ko are sold in plastic bags.[clarification needed]
The pudding is made like other traditional Cantonese steamed cakes. It is said to have originated in the Chinese county of Taishan, which is 140 km (87 mi) west of Hong Kong. The pudding reached its popularity peak in the early to mid-1980s when hawkers 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 aluminium cup. The snack is still available today in select Chinese pastry or snack shops, or from street hawkers. The pudding can also be served like an ice pop, held up by two bamboo sticks.