Red Bean Soup 红豆汤

The bean in question

Chinese red bean soup is made from adzuki beans — small, quick-cooking, chestnut-sweet — simmered until they burst into a rosy, rustic porridge, sweetened lightly, and served warm in winter or chilled in summer. Cantonese kitchens finish it with a strip of aged tangerine peel (chen pi, straight from the doctor's cabinet) and call it tong sui, "sugar water" — the whole southern genre of dessert soups this hall keeps sneaking into.

What tradition says

Food therapy files the adzuki bean under draining dampness — the tradition's term for the waterlogged, heavy-limbed, puffy sort of sluggishness, which is why red bean soup is offered to new mothers, to the bloated, and to anyone enduring a humid August. It sits on the neutral-to-cooling shelf of seasonal eating. Tradition's classification, labeled as such.

The honest nutrition case

No trials to inflate here, and none needed: adzuki beans are simply excellent food — protein and fiber in dessert's clothing, with the slow-release starch that makes a bean the rare sweet that doesn't spike and crash you. The health of this dish is decided in one place only: the sugar you add. My rule is sugar you can taste but not count; a quarter of monk fruit in the pot does the job with none at all. A dessert soup built on beans and restraint beats most things sold as health food.

Xing Po's method

Rinse one cup of adzuki beans (soaking shortens the simmer but nobody's grandmother bothered). Cover with six cups of water, add a thumb-length of tangerine peel, and simmer gently ninety minutes until half the beans have burst. Sweeten at the end — rock sugar or monk fruit — never at the start, or the skins stay stubborn. Some houses add lotus seeds or a handful of pearl sago; mine adds whichever grandchild is nearest to stir.

Serve it warm when the wind bites, cold when the cicadas argue. The doctor calls this "clinical flexibility." I call it soup.

Reviewed 2026-08-26