Authentic Thai Yum Woon Sen Recipe with Shrimp

Yum woon sen is a Thai glass noodle salad, usually tossed while warm with a bright lime-and-fish-sauce dressing, herbs, vegetables, and a mix of meat or seafood. This version pairs ground pork and shrimp with springy mung bean noodles, fresh lime, and chile; the balance of sour, salty, sweet, and spicy can be adjusted to taste, as it is in many regional and family versions.

Ingredients

4 oz (113 g) dried mung bean glass noodles, also called bean-thread noodles
6 cups (1.4 L) water, for cooking the noodles
1 teaspoon (5 ml) neutral oil, such as canola oil
6 oz (170 g) ground pork
6 oz (170 g) raw shrimp, peeled and deveined
2 tablespoons (30 ml) fish sauce
3 tablespoons (45 ml) fresh lime juice, from about 2 limes
1 tablespoon (12 g) finely chopped palm sugar
1–2 Thai bird’s-eye chiles (about 3–6 g), thinly sliced; use less for a milder salad
1 small shallot (about ¼ cup/35 g), thinly sliced
1 medium tomato (about 1 cup/150 g), cut into thin wedges
1 cup (100 g) thinly sliced celery, including some leaves if available
½ cup (25 g) thinly sliced scallions
½ cup (15 g) roughly chopped fresh cilantro leaves and tender stems
2 tablespoons (18 g) chopped roasted peanuts, optional, for serving

Instructions

Soak the noodles. Put the dried glass noodles in a large bowl and cover them with comfortably warm tap water. Soak for 10 minutes, or until flexible but not mushy, then drain well. Noodle thickness and brands vary, so use the package directions if they call for a different soaking time. Cut the drained noodles into manageable lengths with kitchen scissors if they are very long.
Prepare the dressing and vegetables. In a small bowl, stir together the fish sauce, lime juice, and palm sugar until the sugar dissolves. Add the sliced chile and set aside. Slice the shallot, tomato, celery, and scallions, and chop the cilantro. Taste a small drop of dressing: it should be distinctly tangy and savory with a little sweetness. Keep the balance in mind; the noodles and vegetables will soften its intensity.
Cook the pork. Heat the oil in a medium skillet over medium heat. Add the ground pork and break it into small crumbles with a spoon. Cook for 4–5 minutes, stirring, until no pink remains and the thickest pieces reach 160°F (71°C), the USDA FSIS safe minimum temperature for ground meat, checked with a food thermometer. Transfer the pork to a large heatproof bowl. If the skillet has browned bits, add a tablespoon of water and scrape them up; a little of that savory liquid can go into the salad.
Cook the shrimp. Add the shrimp to the same skillet and cook, turning once, for about 2–3 minutes, depending on size. Check the thickest shrimp with a food thermometer; seafood should reach 145°F (63°C), the USDA FSIS safe minimum temperature. Transfer the cooked shrimp to the bowl with the pork. Avoid relying only on color or a fixed cooking time, since shrimp size and skillet heat vary.
Boil the noodles. Bring the measured water to a boil in a saucepan. Add the drained noodles and cook for 2–3 minutes, or just until tender and slippery but still springy. Start checking early because thin noodles can turn soft quickly. Drain thoroughly; excess water dilutes the dressing. Add the hot noodles to the bowl with the pork and shrimp.
Toss and adjust. Pour the dressing over the warm noodles and meat, then toss carefully to coat. Add the shallot, tomato, celery, scallions, and cilantro and toss again. Taste a noodle with a little of the salad. Add more lime for sharper acidity, a few drops of fish sauce for salt, or a pinch of sugar if the lime tastes too forceful. Serve promptly, with peanuts on top if using.

Tips

Use the right noodles. Look for dried mung bean glass noodles, often labeled bean thread or cellophane noodles. Rice vermicelli can be substituted if necessary, but it is less springy and gives the salad a different texture. Follow the package’s soaking directions if they differ from the timing here.
Make the dressing taste balanced before tossing. Limes vary in size and sharpness, and fish sauce varies in saltiness. Start with the listed amounts, then adjust in small additions after tasting. Don’t add extra salt automatically; fish sauce supplies the seasoning.
Keep the noodles from clumping. Drain them thoroughly and dress them while warm, tossing as soon as the ingredients are together. If they sit undressed, they can stick into a dense bundle. A tablespoon of dressing loosened through them is more useful than rinsing away their warmth and flavor.
Choose chile carefully. Thai bird’s-eye chiles are small but potent. Slice one for moderate heat, or remove its seeds and membranes for less heat. If they are unavailable, a small serrano is a practical substitute, though its flavor and heat level may differ. Add chile gradually; you can always serve extra on the side.

Serving Suggestions

Serve yum woon sen soon after tossing, while the noodles are warm and the herbs are fresh. It works as a light main course for four or as part of a Thai-style meal with several shared dishes. Offer extra lime wedges, sliced chile, and fish sauce at the table so diners can tune their portions. For a more substantial spread, pair it with jasmine rice, a mild soup, or grilled vegetables; keep any accompanying dish relatively simple so the salad’s sharp, aromatic dressing remains distinct. Peanuts add crunch, but they are optional and are not required for the salad to taste complete.

Variations

Yum woon sen has many versions, so treat the proportions as a useful starting point rather than a single fixed formula. For a shrimp-forward salad, use 12 oz (340 g) shrimp and leave out the pork; for a pork-only version, use 12 oz (340 g) ground pork and omit the shrimp. In either case, cook the meat or seafood to the safe temperatures given in the instructions. To make the salad vegetarian, replace the pork and shrimp with 8 oz (225 g) sliced firm tofu, pan-seared until golden, and use a vegetarian mushroom seasoning sauce instead of fish sauce. That substitution changes the traditional savory flavor, so taste and adjust the dressing. For a little extra sweetness and roasted depth, stir 1 teaspoon (5 g) Thai roasted chile paste into the dressing; it is optional and can make the salad richer and less clean-tasting. You can also add thinly sliced cucumber, but add it just before serving so it does not water down the bowl.

Storage and Reheating

For the best texture, serve the salad right after tossing. If you expect leftovers, refrigerate them within 2 hours of cooking in a shallow, covered container. The salad can be kept refrigerated for 3–4 days, though the noodles will gradually absorb the dressing and soften, while the herbs and tomato lose freshness. For better leftovers, store the dressing and chopped herbs separately from the noodles and cooked pork and shrimp, then combine portions shortly before eating. Reheat leftovers until they reach 165°F (74°C), the USDA FSIS safe temperature for reheated leftovers; check with a food thermometer. Warm gently in a covered skillet with a teaspoon or two of water, or microwave in short intervals, stirring between them. Add fresh lime and herbs after reheating. Freezing is not recommended because thawed glass noodles and vegetables tend to become soft and watery.

Frequently Asked Questions

What does yum woon sen mean?

Yum refers to a Thai-style spicy, tangy salad or tossed dish, and woon sen refers to glass noodles. The name describes the dish’s main character: slippery noodles coated in a sharp, savory dressing, usually with herbs and other additions.

Can I make yum woon sen ahead of time?

You can cook the pork and shrimp, mix the dressing, and slice sturdy vegetables ahead, then refrigerate each component separately. Cook the noodles and toss everything close to serving time for the best texture. If the dressed salad must be made early, it can be chilled, but expect softer noodles and less lively herbs.

Why did my glass noodles turn mushy?

They may have soaked too long, boiled longer than needed, or been made from a thinner variety than the recipe assumes. Soak only until flexible, check them early during boiling, and drain as soon as they are tender but still springy. The package directions are a good guide when noodle thickness differs.

Is yum woon sen served hot or cold?

It is often served warm or at room temperature rather than piping hot or refrigerator-cold. Tossing the noodles while warm helps distribute the dressing. It is also fine to serve it after it has cooled briefly, but chilling it for a long time can make the noodles firm and the salad less aromatic.

What can I use instead of fish sauce?

For a vegetarian version, use a vegetarian mushroom seasoning sauce or a light soy sauce, starting with less and adjusting to taste. Soy sauce is saltier and has a different flavor, while mushroom seasoning sauce is usually closer in savory depth. Neither tastes exactly like fish sauce, so taste the finished dressing before adding more.

Can I make this salad less spicy?

Yes. Use one chile, remove the seeds and membranes, or leave chile out of the dressing and offer it separately. The salad will still have its defining lime-and-fish-sauce flavor without much heat. If you accidentally make it too spicy, adding more noodles and vegetables helps distribute the chile, though it also increases the serving size.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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