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Bún Riêu Cua 🇻🇳 Vietnamese Cuisine

Bún Riêu Cua

A tangy, tomato-rich northern Vietnamese noodle soup built on a crab-and-shrimp paste base, with fluffy crab dumplings floating in a brick-red broth. Topped with tofu, pork, and a riot of fresh herbs.

⏱30 min prep 🔥40 min cook ⏰70 min total 🍽4 servings 📊hard

The Cultural Story

Bún riêu cua is the rare Vietnamese noodle soup that owes its character not to long-simmered bones but to the sea. The foundation is riêu — a mixture of fresh or fermented crab paste, eggs, and shrimp paste that, when stirred into a simmering broth, floats to the surface in fluffy, golden-pink clouds that are simultaneously dumpling and garnish. Ripe tomatoes are fried in oil until they collapse into a sweet, jammy paste that tints the broth a brilliant orange-red. The result is a soup that is simultaneously sour (from tamarind or vinegar), savory (from shrimp paste), rich (from the crab), and fresh (from the tomatoes). The dish is particularly associated with Hanoi and the northern provinces, where fresh rice-paddy crab — small freshwater crabs pounded to a paste, shells and all — are the traditional base. In the south and in diaspora kitchens abroad, canned crab meat, imitation crab, or a blend of real crab and canned tomato paste is more common. Neither version is more correct; both are delicious. The broth is finished with mắm tôm — Vietnamese shrimp paste — added at the table as a powerful, pungent optional seasoning that polarizes newcomers and delights veterans. The toppings stack up generously: cubes of fried tofu (golden outside, silky inside), slices of Vietnamese ham (chả lụa), a soft-boiled egg, and often crab roe paste sold separately at the market. The herbs — bean sprouts, banana blossom, perilla, sawtooth coriander, water spinach — are piled in a basket alongside. This is Hanoi's great public bowl: sold at market stalls since dawn, eaten by everyone from schoolchildren to office workers, and argued about with a passion reserved only for dishes that people believe belong exclusively to their city.

Ingredients

Instructions

  1. 1Make the tomato base: heat oil in a large pot over medium-high. Add tomato paste and stir 1 minute. Add tomato wedges and cook, pressing them with the back of a spoon, until they collapse and release their liquid — about 8 minutes.
  2. 2Build the broth: pour water or bone broth into the pot with the tomatoes. Add fish sauce, shrimp paste, sugar, and tamarind water. Bring to a boil, then reduce to a steady simmer. Simmer 15 minutes for the flavors to meld.
  3. 3Prepare the riêu (crab mixture): combine crab meat, beaten eggs, fish sauce, black pepper, and shrimp paste in a bowl. Mix well until a loose paste forms.
  4. 4Cook the crab dumplings: increase broth heat to a rolling boil. Pour the crab mixture slowly into the center of the boiling broth in a thin stream, stirring once gently. The mixture will set into fluffy, cloud-like dumplings that float. Do not stir again — let them firm up, about 2–3 minutes.
  5. 5Reduce heat to medium. Add fried tofu cubes to the broth and simmer 3 minutes.
  6. 6Assemble bowls: divide cooked vermicelli among 4 bowls. Ladle broth, crab dumplings, and tofu over the noodles. Add sliced chả lụa and a soft-boiled egg half. Serve immediately with the herb plate, lime, chili sauce, and extra shrimp paste on the side for diners to adjust to their taste.

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