Yum Tua Pluu
“Winged-bean salad with toasted coconut, fried shallot, dried shrimp, peanuts, and palm-sugar-tamarind-chile dressing — the wingbean's serrated crunch is the load-bearing texture.”
Where it comes from
Yum Tua Pluu is a Central Thai yum (mixed-dressed dish, distinct from northern laap or Isaan som tum) that came into the standard repertoire when winged beans (Psophocarpus tetragonolobus) entered Thai market gardens — they thrive in tropical lowlands and have been in Thai cooking since at least the 19th century. The fried-coconut-cream-and-palm-sugar dressing borrows from royal-cuisine yum-style sauces; nam phrik phao smoke and tamarind acid pull it into everyday-Bangkok territory.
On the plate
Bright green diagonals fan across the plate, edges fluted like four fingers. The first bite is all crunch — tua pluu has a snap closer to a green almond than to a green bean — followed by toasted coconut breaking with a faint browned-sugar note, then the dressing arrives: tamarind-tart, palm-sugar-deep, fish-sauce-salty, chile-bright, with smoke from the nam phrik phao underneath. Wingbeans must squeak between the teeth — if they yield silently, they were over-blanched.
How it works
The blanch-and-shock is non-negotiable — 30 seconds is enough to set the colour and tame the slightly grassy raw flavour, but any longer and the four-fingered fluted edge wilts. Cut on the sharp diagonal exposes maximum surface area to the dressing while preserving the serrated crunch. Nam phrik phao (roasted chile paste with shrimp paste, garlic, palm sugar) is the secret — it's what makes the dressing taste cooked-deep rather than raw-pungent, and adds the smoke that distinguishes this yum from a generic chile-lime salad.
Central Thai yum built around winged beans (Psophocarpus tetragonolobus) which entered Thai market gardens in the 19th century. Nam phrik phao is the secret — its roasted-shrimp-paste smoke is what separates this from a generic chile-lime salad.
Variations
Royal-cuisine version uses fried prawns; everyday Bangkok version uses chicken; Phuket south adds fresh coconut; Krua Apsorn (Dinso Road) runs the canonical recipe with cashew instead of peanut.
On the Palate
Ingredients
Serves 4
How it's made
6 steps · Show ↓25 min active · 5 min waiting
How it's made
6 steps · Show ↓- 18 min
Toast 30g unsweetened grated coconut in a dry pan over low heat 5 minutes until golden. Toast 30g raw peanuts separately until skins crack; chop coarsely. Toast 20g dried shrimp 1 minute to draw out aroma; pound briefly in a mortar.
Watch outWatch for the coconut to burn; stir frequently to ensure even toasting.
- 28 min
Make the dressing: in a small pan, combine 60g grated palm sugar, 3 tbsp tamarind concentrate, 3 tbsp fish sauce, 2 tbsp coconut cream, 4 dried red chiles (toasted and crushed), 1 tbsp roasted Thai chile paste (nam phrik phao). Heat gently until palm sugar melts and the dressing thickens to coating consistency. Cool.
Watch outEnsure the heat is low to prevent the dressing from burning as the sugar melts.
- 35 min
Trim 250g winged beans (tua pluu): cut on the sharp diagonal into 5mm slices, exposing the four-fingered serrated edge. Blanch 30 seconds in boiling salted water, then plunge into ice water to lock the green and crunch. Drain thoroughly.
Watch outDo not over-blanch the beans; they should remain crisp and bright green.
- 45 min
Slice 3 shallots into thin rings, fry in 100ml oil over medium heat until golden — drain on paper, save the oil. (Or use store-bought fried shallot.)
Watch outMonitor the oil temperature; too hot will burn the shallots quickly.
- 53 min
In a wide bowl, combine the winged beans, 100g cooked peeled shrimp (or boiled chicken shred — optional protein), the dried shrimp, peanuts, half the toasted coconut, half the fried shallot. Pour over the dressing and toss with hands or two spoons — barely coat.
Watch outBe gentle when tossing to avoid bruising the winged beans.
- 61 min
Plate. Top with the remaining toasted coconut and fried shallot, a few cilantro leaves, and 2 sliced bird's-eye chiles. Eat immediately — wingbeans soften within 10 minutes once dressed.
Watch outServe immediately to maintain the crunch of the winged beans.
