Thin-sliced beef poached in a golden, sour broth built on Guizhou-style red sour soup — fermented tomato and pickled chilli, lifted by the lemon-ginger scent of mountain pepper. The soup is bright, sour and just spicy, the beef silky and barely cooked, the whole bowl a wake-up for the appetite. It has become a fixture of casual restaurants and food-delivery menus across China, the sour-soup answer to a plain bowl of rice.
The dish grows out of Guizhou's sour-soup tradition, where two sour soups dominate: white sour soup, fermented from rice water in a crock, and the better-known red sour soup, fermented from a wild local tomato (mao-la-jiao) with chilli. Mountain pepper, a citrusy Litsea berry, gives the broth its lemon-ginger lift. Restaurants outside Guizhou recast that broth in a tomato-forward golden form and pair it with quick-cooking beef, and the result spread nationwide through chain canteens and delivery apps as a fast, sharp, rice-friendly main.
The first thing is the sourness — clean and tomato-bright, not vinegary — riding on a warm chilli hum and the unmistakable citrus-ginger top note of mountain pepper. The beef slips down silky and just-set, having spent only seconds in the simmer. Bean sprouts or enoki underneath soak up the broth and turn slithery. You drink the soup as much as you eat the beef; a good bowl makes you reach for rice to soak up what's left.
The golden broth is really an emulsion: tomato and chilli are fried in oil until their pigments and aromas bloom, then loosened with stock so the fat and water hang together as a glossy, full-bodied soup. The sourness comes from organic acids — lactic and others built up during fermentation of the tomato base, plus the tomato's own acidity — which is why a fermented sour soup tastes rounder than one soured with vinegar. The beef is sliced paper-thin and poached for only seconds; thin slices and brief heat keep the muscle from seizing, so it stays tender. Mountain pepper or its oil goes in late, since its volatile citrus aroma cooks off fast.
Variations
The Guizhou orthodoxy uses fermented red sour soup with wild tomato and mountain pepper, eaten deep and funky; the popular restaurant version leans tomato-forward and golden, milder and more broadly palatable. Some cooks swap beef for fish or sliced fatty lamb, while a lighter white-sour-soup version skips the chilli heat for a cleaner, paler sourness.
On the Palate
Where Suantang Feiniu sits in the Chinese flavor cloud
Ingredients
Serves 3
How it's made
6 steps · 20 min
- 13 min
Blanch beef slices briefly in hot water to remove scum, then drain.
- 25 min
Fry chopped tomato and pickled chilli in oil until soft and fragrant.
Watch outFry the tomato and pickled chili until the oil runs red and glossy — that bloomed pigment and fragrance is what carries the whole broth.
- 36 min
Add stock and mountain pepper, bring to a simmer to build the golden sour broth.
- 42 min
Blanch bean sprouts or enoki and lay them in the serving bowl.
- 51 min
Slide the beef into the simmering broth and poach for seconds until just set.
Watch outThe beef is done in seconds — slide it in, and the moment the slices lose their red and curl, lift them out or they turn tough.
- 61 min
Ladle beef and broth over the sprouts; finish with a few drops of mountain-pepper oil and scallion.
