Vietnamese Seafood Hotpot with Lemongrass and Lime

Vietnamese seafood hotpot is a light, aromatic sharing dish centred on a clear broth rather than a heavy stew. Lemongrass, ginger, spring onion and fish sauce give the soup its clean savoury depth, while white fish, squid, prawns and shiitake mushrooms are cooked only briefly so the seafood stays tender. Served bubbling at the table with rice vermicelli, mung bean sprouts, coriander, Thai basil and lime, it lets each person build a fresh, fragrant bowl with plenty of texture and a sharp citrus finish.
Cuisine style Vietnamese hotpot
Flavor profile Herby • Light and fresh • Umami-rich
Techniques Simmering • Staged seafood cooking
Key equipment Stockpot • Ladle • Colander
Cooking style Crowd-friendly • Minimal cleanup
Time commitment Under 1 hour

Why this recipe works

  • Aromatic broth: Lemongrass, ginger, spring onion and fish sauce create a fragrant savoury base without needing a long stock-making process.
  • Tender seafood, fresh toppings: Brief cooking keeps the seafood delicate, while sprouts, herbs and lime add crunch, perfume and brightness at the table.
  • Built to serve communally: Noodles and garnishes are added to each bowl, making the hotpot easy to adapt for different appetites and preferred herb levels.

Get the most out of this recipe

Timing notes

  • Prep before the seafood goes in: Have the noodles, herbs, sprouts and lime ready before adding the seafood, as the final cooking stage moves quickly.
  • Serve as soon as it is ready: The hotpot is best brought to the table while gently bubbling, before the fish breaks apart or the prawns become firm.

Ingredient notes

  • Choose firm white fish: Use a fish fillet that holds its shape in broth; very delicate fish can flake apart before serving.
  • Bruise the lemongrass: Bruising helps release its citrusy oils into the broth more effectively than slicing alone.
  • Add lime at the table: Finishing each bowl with lime keeps the flavour fresh and lets everyone control the sharpness.

Common mistakes

  • Boiling too hard: Keep the broth at a gentle simmer; vigorous boiling can toughen squid and make the fish fall apart.
  • Leaving prawns in too long: Prawns should be pink and opaque, then served promptly rather than sitting in the hot broth.
  • Adding noodles to the pot: Keep the vermicelli separate and add it to bowls so it does not soften excessively in the broth.

Make-ahead tips

  • Make the broth ahead: The aromatic broth can be prepared in advance, then reheated gently before the seafood is added.
  • Keep toppings separate: Store noodles, herbs, sprouts and seafood separately where possible so the fresh elements keep their texture.
  • Reheat gently: Warm leftovers until piping hot, but avoid a hard boil to help preserve the texture of the seafood.

Equipment you'll need

Ingredients

Broth and hotpot

To serve

Instructions
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  1. Bruise the lemongrass with the back of a knife and cut into short lengths. Peel the ginger and slice it. Trim the spring onions, then slice the white and green parts, keeping them separate.
  2. Put the water, lemongrass, ginger and the white parts of the spring onion into a stockpot and bring to a gentle simmer. Simmer for 15 minutes so the broth turns fragrant. Keep it at a low simmer while you prepare the rest.
  3. Meanwhile, cook the rice vermicelli according to the packet instructions, then drain well in a colander and rinse briefly with cool water to stop it sticking. Set aside. Rinse the mung bean sprouts and pick the leaves from the fresh coriander and fresh Thai basil.
  4. Slice the shiitake mushrooms. Cut the squid into bite-sized pieces if needed, and cut the white fish fillet into large chunks so it holds together. If your prawns are shell-on, peel them now.
  5. Stir the fish sauce into the broth, then add the shiitake mushrooms and simmer for 3 minutes. Add the squid and simmer for 2 minutes, then add the fish and simmer for 2 minutes. Add the prawns and cook for 2 to 3 minutes, just until pink and opaque.
  6. Cut the limes into wedges. Bring the pot to the table while it is still gently bubbling, and let everyone build bowls with rice vermicelli, mung bean sprouts, herbs and ladles of hot broth with seafood. Finish each bowl with a squeeze of lime and a scatter of the spring onion greens.

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Recipe notes

Tips

  • Keep the broth at a gentle simmer, not a rolling boil, so the squid stays tender and the fish does not break up.
  • Add the seafood in stages as written; prawns and squid cook quickly and will turn rubbery if left in the pot too long.
  • If serving anyone who is pregnant, elderly, or immunocompromised, make sure the prawns are fully opaque and the fish flakes easily before serving.

Substitutions

  • Replace shiitake mushrooms with button mushrooms for a milder flavour.
  • Replace rice vermicelli with glass noodle for a slightly chewier texture.
  • Replace fresh Thai basil with fresh coriander for a simpler herb finish.

Storage

  • Refrigerate up to 2 days
  • Cool the broth and seafood quickly, then refrigerate in a sealed container. Reheat gently in a saucepan until piping hot, then add fresh herbs, sprouts and noodles at the table; avoid boiling hard to keep the seafood tender.

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Recipe overview

  • Servings: 4 servings
  • Total time: 55min (40min active)
  • Difficulty: Medium
  • Cuisine: Vietnamese
  • Allergens:
    Crustaceans Fish Molluscs

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