Red bean ice is a drink commonly found in Hong Kong

Hong Kong

Hong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...

. It is usually served in restaurants like cha chaan teng

Cha chaan teng

A cha chaan teng means tea diner, also called Chinese diner, is commonly found in Hong Kong, China, and Taiwan, known for its Chinese food, eclectic and affordable menus, which include many dishes from Hong Kong cuisine and Hong Kong-style Western cuisine. Cha chaan tengs are also popular in Macau...

. The standard ingredients include azuki bean

Azuki bean

The is an annual vine, Vigna angularis, widely grown throughout East Asia and the Himalayas for its small bean. The cultivars most familiar in north-east Asia have a uniform red color, but white, black, gray and variously mottled varieties are also known. Scientists presume Vigna angularis var...

s, light rock sugar syrup

Syrup

In cooking, a syrup is a thick, viscous liquid consisting primarily of a solution of sugar in water, containing a large amount of dissolved sugars but showing little tendency to deposit crystals...

, and milk

Milk

Milk is a white liquid produced by the mammary glands of mammals. It is the primary source of nutrition for young mammals before they are able to digest other types of food. Early-lactation milk contains colostrum, which carries the mother's antibodies to the baby and can reduce the risk of many...

. It is often topped with ice cream

Ice cream

Ice cream is a frozen dessert usually made from dairy products, such as milk and cream, and often combined with fruits or other ingredients and flavours. Most varieties contain sugar, although some are made with other sweeteners...

 to become a dessert.

Origin

Red bean ice tea has been around since the 1970s. The later iterations of red bean bubble tea

Bubble tea

Bubble tea is the name for pearl milk tea and other similar tea and juice beverages that originated in tea shops in Taichung, Taiwan during the 1980s. Drink recipes may vary, but most bubble teas contain a tea base mixed with fruit and/or milk...

is a derivative. Some places which serve the drink add in chewy flavoured jelly.