Sweet Green Bean Soup with Coconut & Sago
One of the main joys of a mahjong soirée is an opportunity to cook and eat favorite foods from my childhood days in Hong Kong. And sweet soup—糖水 “tong shui” (literally “sugar water”)—is one of them.

Given the wave of hot spring weather in San Francisco recently last week, I decided to make some 綠豆沙 sweet green bean (mung) soup to help dissipate the “heatiness.”

Clockwise from far right: green (mung) beans, tapioca (sago) pearls, lotus seeds, and dried tangerine peels and ginger.
By the way, the ingredients and cooking method is very similar to red bean soup. But personally, I add coconut milk and tapioca pearls only to green bean soup as they tend to add a tropical and lighter texture that I like for a “chilling” soup. (If you follow traditional Chinese medical philosophy, ladies may want to avoid this “cooling” soup during that time of the month.)

This is what lily bulbs look like, for easy reference!
I love my “tong shui” hot, but they are great chilled as well. Just add a splash of milk or soy if eating after chilling as the soup may thicken or even congeal considerably.
There are many variations on this sweet soup recipe. One I’d like to try is wiffy the Noob Cook’s recipe, which uses pandan leaves and gingko nuts. Her tapioca to green bean ratio is a bit higher than mine—play with it, and see what your personal preference is.
By the way, Wiffy has a great photo-by-photo post on how to cook tapioca (sago) pearls, for those who want some extra help on this. Cooking tapioca through the center without “melting” the pearls into one big glob can be a challenge, but if you follow her easy instructions, it will be cake!

Not sure if I can say perfect, but these tapioca pearls are much better than the “glob” I used to get when I first started making them!
My dear hubby would never accept Chinese sweet soups as “real dessert,” so I only make them for myself. I love them as a post-run protein snack—run it in the blender, and the soup will be transformed into a tropical-themed protein shake!

A snapshot of the recipe

