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. The two types of sugar used interchangeably are rock sugar and sliced sugar (片糖).2
Law, K.; Meng, L.C.; Tettoni, L.I. (2012). Authentic Recipes from China. Authentic Recipes Series. Tuttle Publishing. p. pt188. ISBN 978-1-4629-0534-8. Retrieved December 8, 2018. 978-1-4629-0534-8 ↩
"Red Bean and Black Glutinous Rice Dessert". en.christinesrecipes.com. Retrieved 4 August 2014. http://en.christinesrecipes.com/2010/10/red-bean-and-black-glutinous-rice.html ↩