Sliced grilled beef tossed in a lime-fish-sauce-chile dressing with cucumber, cherry tomato, Chinese celery, mint, and shallot — bright, hot, sour.
Yum nua is the beef variation of the central-Thai yum (literally just 「mix」) family — a category of cold, raw or barely-cooked salads bound by a lime-nam pla-chile-sugar dressing. The yum format predates refrigeration: the high-acid dressing both seasons and chemically firms the proteins. Beef yum became a Bangkok hotel and middle-class restaurant standard in the 20th century, distinct from Isaan's hot-grilled nua nam tok (where the dressing carries roasted rice powder).
The beef yum of central Thailand — high-acid lime-nam pla-chile dressing both seasons and chemically firms the rare beef. Khuen chai (Chinese celery), not Western celery; the leafy stem carries half the aroma.
Beef rosy in the centre, edges charred, bleeding pinkish juice into the dressing as you toss. The dressing is thin and aggressive — sour pulls first, then salt from the nam pla, then a slow chile burn that builds across three bites. Mint and Chinese celery cut the heat. Cucumber adds cold crunch. If the beef is grey through, the cook overshot; if the dressing tastes only salty, it needs more lime.
The load-bearing detail is dressing-to-beef contact time. Yum nua is dressed and served immediately; sit it for 10 minutes and the lime acid grey-cooks the rare beef into a leathery brown and the herbs collapse. Chinese celery (khuen chai), not Western celery — the leafy stem is half the aroma. Bird's eye chiles must be bruised before slicing so the capsaicin disperses into the dressing rather than landing in one violent piece.
Variations
Bangkok hotel-style uses grilled tenderloin; Isaan nua nam tok carries roasted-rice powder and serves with sticky rice; northern Thai laap nua khua adds toasted aromatics; Vietnamese bò tái chanh is the lime-cured cousin (no fish sauce, plus peanut).
On the Palate
Where Yum Nua sits in the Thai flavor cloud
Ingredients
Serves 3
How it's made
4 steps · 25 min active · 5 min waiting
- 112 min
Season 300g beef sirloin or flank with a pinch of salt and a teaspoon of light soy. Rest 10 minutes at room temperature. Grill or sear over high heat 2 minutes per side for medium-rare (internal 54°C). Rest 5 minutes before slicing.
Watch outEnsure the grill is preheated to achieve a good sear without overcooking.
- 24 min
While beef rests, mix dressing: 3 tbsp lime juice, 2 tbsp nam pla (fish sauce), 1 tsp palm sugar dissolved, 4-6 prik kee noo (bird's eye chiles) bruised and sliced. Taste — should hit sour first, then salty, with chile heat trailing.
Watch outMake sure the palm sugar is fully dissolved to avoid graininess in the dressing.
- 36 min
Slice rested beef across the grain into 3mm strips. Combine in a wide bowl with 1 sliced shallot, 8 halved cherry tomatoes, half a cucumber in half-moons, a handful of Chinese celery cut in 3cm lengths, and 20 mint leaves.
Watch outCutting against the grain ensures the beef is tender; slicing with the grain will make it chewy.
- 42 min
Pour dressing over, fold gently 4-5 turns — do not crush the herbs. Plate on lettuce leaves; spoon residual dressing over. Serve immediately, room temperature.
Watch outAvoid overmixing to keep the herbs intact and vibrant.
