Kuay Teow Reua, Boat Noodle Soup, Thai Dark Broth Noodles
This Thai boat noodles recipe is kuay teow reua, the dark noodle soup once sold from boats on the canals of Ayutthaya and Bangkok: flat rice noodles in a deep-brown broth seasoned with dark soy, fish sauce and palm sugar, piled with sliced beef round, beef meatballs, braised shank and pork liver, then finished with bean sprouts, Thai basil and fried garlic. The broth is rich, salty-sweet and intensely beefy — a bowl that eats like a meal and a half. One serving is about 632 g.
Boat noodles were sold from wooden boats on the canals of Ayutthaya and Bangkok, where vendors cooked over a small stove on deck and served customers sitting on the canal bank. The bowls were small — easy to hold on a canal bank and quick to eat — a tradition that survives today in restaurants that still serve them in small bowls, so regulars order two or three. The broth is darkened with dark soy sauce and traditionally thickened with pork blood, which gives it its distinctive body and colour; this version keeps the dark, rich character with dark soy and a long-simmered beef stock.
Pairs well with: Bean sprouts, Thai basil & lime wedges
Provenance
Thailand
Thai Heritage
East & South Asia
Time Dedication
1h 15m
25m prep • 50m cook
Batch Yield
4 Servings
583 kcal per serving
1 serving ≈ 632 g
Technical Skill
Advanced
Hard (Slow Broth)
Meal Timing & Digestive Fit
Breakfast
Not Advised
Lunch
Prime Metabolic Fit
Dinner
Ideal Hearty Main
Snack & Tea
Inappropriate
Thai Heritage
Photo: Zheng Zhou, CC BY-SA 4.0, via Wikimedia Commons
The Heritage Formulary
Estimated cost: Medium — about $4–5 per serving at home (USD)
Real boat noodles are dark, rich and salty-sweet, with the beef cooked by the boiling broth in the bowl — and the herbs and sprouts always added at the table.
Execution Methodology & Culinary Technique
Prep Stage: Slice the Beef & Season the Broth
25 Mins • Slicing & Seasoning
Put the 300 g beef round in the freezer for 20 minutes so it slices paper-thin, then cut it against the grain. Halve the 200 g meatballs and slice the 100 g pork liver thinly. Stir the dark soy sauce, fish sauce, light soy sauce and palm sugar into the 1 litre beef stock in a large pot, and taste: the broth should be dark, salty and a little sweet before the beef goes in.
Maestro Tip: Freeze the round steak briefly before slicing — a firm piece cuts far thinner than a soft one, and thin beef cooks in seconds in the hot broth.
45 Mins Gentle simmer, about 95°C (200°F)
Put the 200 g beef shank in the seasoned stock and bring it to a gentle simmer — never a hard boil, which clouds the broth. Simmer for 45 minutes until the shank is tender enough to slice but still holds its shape. Lift it out, let it rest for 5 minutes, then slice thinly across the grain.
Skim the surface as it simmers: a clear, dark broth is the goal, and foam left in clouds it.
Done when: Shank slices cleanly and is tender, not stringy.
5 Mins Medium heat, about 160°C (320°F)
While the shank braises, fry the 15 g sliced garlic in the 15 ml oil over medium heat, stirring constantly, until golden and crisp — about 2 minutes. Lift out at once with a slotted spoon: garlic goes from gold to bitter in seconds. Drain on kitchen paper and keep the oil for another use.
Pull the garlic off the heat while it is still pale gold — it keeps cooking in its own heat.
Done when: Crisp, golden garlic chips.
5 Mins Boiling water, 100°C (212°F)
Bring a large pot of water to a rolling boil. Cook the soaked 200 g flat rice noodles for 2–3 minutes until just tender, then drain well. Do not cook the noodles in the broth — they would drink it and turn the broth cloudy and starchy.
Drain the noodles thoroughly: water left on them dilutes the broth in the bowl.
Done when: Noodles are tender but still springy.
5 Mins Boiling, 100°C (212°F)
Bring the seasoned stock back to a rolling boil and check the seasoning: it should be dark, salty-sweet and intensely beefy. Drop in the 100 g sliced pork liver and the halved meatballs for 1 minute — the liver cooks almost instantly and must stay pink inside. Taste again and add a pinch of salt or a drop of fish sauce if it needs it.
Do not overcook the liver: 1 minute in boiling broth is enough, and grey liver is tough liver.
Done when: Broth is boiling and deeply flavoured; liver just cooked.
5 Mins Serve hot, about 75°C (167°F)
Divide the noodles between 4 bowls. Lay the thin-sliced raw beef round over the hot noodles — the broth will cook it in the bowl — then add the sliced shank, meatballs and liver. Ladle over the boiling broth, then scatter the fried garlic, spring onions, coriander and white pepper. Serve with the bean sprouts, Thai basil, chilli flakes and lime wedges on the side so each person seasons their own bowl.
The raw beef goes in last and the broth must be boiling — that is what cooks it. If the broth has cooled, reboil it first.
Done when: Beef turns from red to brown in the hot broth; bowl is steaming.
Finishing Touches & Plating
Eat boat noodles hot, with the bean sprouts and Thai basil stirred in at the table and lime squeezed over the top. The small-bowl tradition survives for a reason: the broth is so rich that one bowl is a meal, and a second is a feast.
Nutritional Physiology & Benefits
Energy
583
kcal / serving
Protein
50g
Complete AA
Carbs
55g
Complex
Fats
18g
Healthy
| Energy | 583 kcal |
| Protein | 50 g |
| Carbohydrates | 55 g |
| Fat | 18 g |
| Fibre | 2.9 g |
| Sugar | 7.0 g |
| Sodium | 1573 mg |
| Energy | 92 kcal |
| Protein | 7.9 g |
| Carbohydrates | 8.6 g |
| Fat | 2.8 g |
| Fibre | 0.5 g |
| Sugar | 1.1 g |
| Sodium | 249 mg |
Nutrition values are estimated — calculated from USDA FoodData Central values for the listed ingredients.
Vitamins & minerals: Iron, zinc and B vitamins from the beef and pork liver, vitamin C from the lime and bean sprouts; the broth adds sodium, not vitamins. Nutrition is estimated.
Very High in Protein
About 49.7 g of protein a serving from the beef, meatballs, shank and liver — this Thai boat noodles recipe is one of the most protein-rich noodle soups you can make at home.
Fresh Herbs at the Table
The bean sprouts, Thai basil and coriander are added raw, so they keep their crunch, their vitamins and their bright flavour against the rich broth.
Iron from Beef and Liver
Beef and pork liver are among the richest food sources of iron, which the body needs to carry oxygen in the blood.
Food Pairings
To optimize nutrient absorption and elevate the sensory depth, pair with these authentic accompaniments:
Drinks
Thai Iced Tea
Sweet, milky Thai tea is the classic counterpoint: its cold sweetness tames the chilli and the salt of the broth.
Vegetables
Bean Sprouts & Thai Basil
Served on the side and stirred in at the table, they add crunch and a cool, liquorice freshness that cuts the richness of the dark broth.
Sides
Pork Crackling
A handful of crisp pork crackling on top adds crunch and salt — the traditional street-stall finish for a bowl of boat noodles.
More Pairings
Mango Sticky Rice
After a salty, spicy bowl, sweet mango with coconut sticky rice is the classic Thai finish — cool, sweet and completely different.
Complete menu
Serve the boat noodles with bean sprouts, Thai basil, chilli flakes and lime on the side, a glass of Thai iced tea, and mango sticky rice to finish — a full Thai market lunch at home.
Digestive Guardrails
To prevent digestive distress, sluggishness, or palate clash, avoid pairing the dish with these elements:
Cooking the Noodles in the Broth
Noodles cooked in the broth drink it dry and release starch that turns it cloudy and gluey. Always cook them separately in water and ladle the broth over. This is general food-safety information, not medical advice.
Reheating the Assembled Bowls
A finished bowl reheated whole overcooks the beef and liver and turns the noodles to mush. Store the broth, noodles and toppings separately and assemble fresh bowls. This is general food-safety information, not medical advice.
General information only, not medical advice — consult a doctor for personal dietary decisions.
Who Should Eat It
Health Conditions — Adjust or Avoid
If you have a medical condition, consult your doctor before changing your diet.
Storage & Use
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