Name: Goong Ob Woon Sen (กุ้งอบวุ้นเส้น) — Clay-Pot Prawns with Glass Noodles
Prep time: 15 min
Cook time: 10 min
Total time: 25 min
Yield: Clay pot for 2
Cuisine: Thai
Ingredients: 10 white prawns (กุ้งขาว); 1 pack glass noodles (วุ้นเส้น); mature ginger, sliced (ขิงแก่); 2 crushed coriander roots (รากผักชี); 50 g sliced pork belly (หมูสามชั้น); 1 cup pork stock (น้ำสต็อกหมู); 2 tbsp white soy (ซีอิ๊วขาว); 1 tbsp oyster sauce (ซอสหอยนางรม); 1 tsp dark soy (ซีอิ๊วดำ); 0.5 tbsp sugar (น้ำตาลทราย); 1 tbsp sesame oil (น้ำมันงา); 1 tsp black pepper, 1 tsp sichuan pepper (พริกไทยดำ, พริกหอม); celery and spring onion to finish (ขึ้นฉ่าย, ต้นหอม)

The Pot That Arrives Smoking

กุ้งอบวุ้นเส้น is Thai seafood restaurants' drama dish — the clay pot comes to the table with the lid on, and the first thing out when it opens is a cloud of ginger-and-pepper steam. Phol Food Mafia calls it what it is: one of the main dishes of Thailand's seafood restaurants. The technique is a bake, not a stir-fry: everything cooks under the lid in four to five minutes.

The secret the sources share is the sauce soak. Wongnai's version doesn't cook the noodles first — the dry glass noodles go straight into the seasoned stock and drink it until soft and clear, so every strand is flavoured before the heat comes on. Cookpad's Karuna Lo does the same at home: noodles coated in the sauce and rested.

The pot base does double duty. Wongnai lines the clay pot with pork belly slices — the fat renders as the pot heats, and nothing sticks or burns. Phol uses cubes of solid pork fat; Karuna Lo's home shortcut is bacon. On top of that goes the aromatic layer: mature ginger, coriander roots, black pepper, and — in Wongnai's and Phol's versions — the dish's signature spice, Sichuan pepper (พริกหอม), the numbing-humming note that separates this from every other prawn dish.

The Recipe (clay pot for 2, from Wongnai)

Thai	English	Amount
กุ้งขาว	White prawns	10
วุ้นเส้น	Glass noodles (dry)	1 pack
ขิงแก่หั่นแว่น	Mature ginger, sliced	1 rhizome
รากผักชี	Coriander roots, crushed	2
หมูสามชั้น	Pork belly, sliced	50 g
น้ำสต็อกหมู	Pork stock	1 cup
ซีอิ๊วขาว / ซีอิ๊วดำ	White soy / dark soy	2 tbsp / 1 tsp
ซอสหอยนางรม	Oyster sauce	1 tbsp
น้ำตาลทราย / น้ำมันงา	Sugar / sesame oil	½ tbsp / 1 tbsp
พริกไทยดำ / พริกหอม	Black pepper / Sichuan pepper	1 tsp / 1 tsp
ขึ้นฉ่าย / ต้นหอม	Celery / spring onion	to finish

Phol's restaurant-tight ratio: 40 g noodles, 100 g river prawns, 150 ml water, 1 tbsp oyster, 2 tsp white soy, 1 tsp dark soy, 2 tsp sugar, 1 tsp seasoning sauce, ½ tsp each pepper, 30 g pork fat. Karuna Lo's home version: tiger prawns, 2 small packs of noodles, 6 slices pork fat or bacon, half a cup of stock.

The Method

The soak. Stock, white soy, oyster sauce, dark soy, sugar and sesame oil mixed; the dry glass noodles go in to drink it until soft and clear.
The base. Pork belly slices lined on the clay-pot bottom, then ginger, coriander roots, black pepper and Sichuan pepper.
The pot. Noodles in with all the seasoned liquid, prawns arranged on top.
The bake. Lid on, 4–5 minutes — until the prawns are pink and the noodles have absorbed the sauce.
The finish. Lid off, celery and spring onion in, lid back on, off the heat — rest a minute, then serve from the pot.

Where Thai Sources Disagree

The base fat. Pork belly (Wongnai), solid pork fat (Phol), or bacon (Karuna Lo's home shortcut). Same job — render into the pot, stop sticking — but bacon adds its own smoke.

Stock or water. Wongnai uses a full cup of pork stock, Karuna Lo half a cup, Phol plain water with seasoning sauce. The stock versions are deeper and restaurant-like; the water version is Phol's clean-burning take.

Garlic or not. Phol chops garlic straight into the sauce; Wongnai runs none in the sauce but keeps the base gingery. Karuna Lo pounds a whole head of garlic plus coriander roots and pepper into the base. The garlic base versions are the punchiest.

Sichuan pepper. A teaspoon in Wongnai, half in Phol, optional in Karuna Lo ("sold at Makro, add or skip"). It's the signature hum — but it's also the easiest ingredient for a home cook to skip and still get 90% of the dish.

River or sea prawns. Phol specifies river prawns for their sweetness; Wongnai uses white prawns. Head-on is the restaurant default — the head fat sweetens the sauce as it bakes.

How Western Versions Get It Wrong

Boiling the noodles first. The noodles must drink the seasoned liquid raw and cook in the pot — pre-boiled noodles can't absorb flavour and go gluey.
Stir-frying instead of baking. The lid and the four-minute bake are the technique. Stir-fry it and you've made a different dish.
Skipping the fat base. Without the pork fat or belly on the pot bottom, the noodles weld to the pot. It's a functional ingredient, not optional.
Sweet chilli on the side. The sources finish with celery and spring onion — no dipping sauce in the recipe at all.
Prawns buried. The prawns sit on top so the head fat drips down into the noodles. Bury them and you lose that.

UK Ingredient Notes

Prawns: raw shell-on king prawns from any supermarket; head-on from Chinese grocers if you can get them.
Glass noodles: mung bean vermicelli, 40 g per pot — Thai or Chinese grocers.
Clay pot: any lidded heatproof casserole works; if you only have a pan, use a tight lid and Phol's 4–5 minute timing.
Sichuan pepper: standard in Chinese grocers; skip if unavailable — the dish still works (the sources say so).
Coriander root: Thai grocers sell bunches with roots attached; substitute the bottom stems.

Sources

This recipe is translated from the following Thai-language sources. Where they disagree, we've said so.

1. Wongnai — "วิธีทำ กุ้งอบวุ้นเส้น เมนูเส้นเหนียวนุ่ม กุ้งแน่น" (the recipe used here: stock-soaked noodles, belly-lined pot) — wongnai.com

2. Phol Food Mafia — "Baked Prawn with Glass Noodles (กุ้งอบวุ้นเส้น)" (restaurant ratio, 4–5 minute bake, smoke signal) — pholfoodmafia.com

3. Cookpad — "กุ้งอบวุ้นเส้นหม้อดิน" by Karuna Lo (home version with bacon) — cookpad.com

4. Lemon8 — "กุ้งอบวุ้นเส้นสูตรบ้านๆ ทำง่ายในหม้อเดียว" (the pounded garlic-coriander-pepper base) — lemon8-app.com

Johnny Tiger

Johnny researches and translates Thai recipes from Thai-language sources — chefs, restaurants and home cooks in Thailand — and publishes them with their sources cited. No westernised shortcuts, no invented steps.