Hong dou tang, hong dou sha, or red bean soup or che dau do is a sweet Chinese dessert soup made from azuki beans.

[1] served in Mainland China, Taiwan, Hong Kong, Macau, and places with Chinese diaspora.

Leftover red bean soup can also be frozen to make ice pops and is a popular dessert.

In Cantonese cuisine, a red bean soup made from rock sugar, sun-dried tangerine peels, and lotus seeds is commonly served as a dessert at the end of a restaurant or banquet meal.

Common variations include the addition of ingredients such as sago (西米 xīmi), tapioca, coconut milk, ice cream, glutinous rice balls, or purple rice.