Zarzuela de Mariscos (Catalan Shellfish and Fish Stew)

In Catalan cooking, zarzuela de mariscos brings fish and shellfish together in a wide, shallow-style stew with a glossy tomato, onion and garlic base. The sauce is enriched with olive oil, white wine, fish stock, saffron and sweet paprika, giving warmth and savoury depth while keeping the seafood at the centre. Squid is simmered until tender, then mussels, cod and prawns are added near the end so each element stays delicate rather than overcooked. Served hot with plenty of sauce spooned over the seafood, it is the kind of dish that feels generous and special without relying on complicated technique.
Cuisine style Catalan seafood stew
Flavor profile Savoury • Gently smoky • Umami-rich
Techniques Sofrito-style simmering • Gentle poaching
Key equipment Wide pot or Dutch oven
Cooking style One-pot cooking

Why this recipe works

  • Deep seafood flavour: Tomato, onion, garlic, paprika and saffron form a concentrated base before the wine, stock and seafood are added.
  • Sofrito foundation: Cooking the tomatoes until thick and glossy gives the stew body and helps the sauce cling to the fish and shellfish.
  • Seafood cooked in stages: Adding squid, mussels, cod and prawns at different points keeps each element tender rather than overcooked.

Get the most out of this recipe

Ingredient notes

  • Choose firm white fish: Cod works well because it flakes cleanly but holds its shape; sea bass is a good alternative if you want a similarly firm texture.
  • Check mussels carefully: Discard any cracked mussels or any that do not close when tapped, and remove any that stay closed after cooking.
  • Use sweet paprika: Sweet paprika adds warmth and colour without turning the stew spicy or masking the delicate seafood.

Texture tips

  • Keep the simmer gentle: Once the seafood is in the pot, avoid a hard boil; steady, gentle heat helps keep the squid tender and the cod intact.
  • Add delicate seafood last: Cod and prawns need only a short simmer, so add them near the end and cook just until the fish is opaque and the prawns are pink.

Make-ahead tips

  • Make the sauce ahead: The tomato base can be prepared in advance up to the point before the seafood is added, then reheated gently before finishing the stew.
  • Best served freshly finished: Seafood is at its best just after cooking, so finish the mussels, fish and prawns shortly before serving.
  • Reheat with care: Warm leftovers gently over a low heat until piping hot, taking care not to overcook the seafood.

Serving ideas

  • Serve with bread: Crusty bread is ideal for soaking up the saffron-tomato sauce.
  • Use shallow bowls: Spoon the seafood into shallow bowls and ladle the sauce over the top so the shellfish and fish stay visible.

Equipment you'll need

Ingredients
Instructions
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  1. Prepare the seafood: scrub and debeard the mussels, discarding any that are cracked or do not close when tapped. Slice the squid into rings and cut the cod into large chunks. Peel the prawns if you like, or leave them shell-on for more flavour.
  2. Warm the olive oil in a wide pot over a medium heat. Add the onion and cook for 10 minutes, stirring, until soft and sweet but not browned. Add the garlic and cook for 1 minute until fragrant.
  3. Grate the tomatoes into the pot (discard the skins) and stir in the sweet paprika and saffron. Cook for 15 to 20 minutes, stirring occasionally, until the sauce is thick and glossy and the oil begins to separate at the edges. Keep the heat moderate so the paprika does not catch.
  4. Pour in the wine and simmer for 3 to 4 minutes to cook off the alcohol. Add the fish stock and bring to a gentle simmer. Cook for 10 minutes to meld the flavours.
  5. Add the squid and simmer gently for 12 minutes until tender. Add the mussels, cover, and cook for 4 to 6 minutes, shaking the pot once or twice, until the shells open. Discard any mussels that remain closed.
  6. Nestle in the cod and prawns and simmer gently for 4 to 6 minutes until the cod is just opaque and flakes easily, and the prawns are pink. Taste the broth and adjust with a little more stock if you want it looser. Serve straight away, spooning plenty of sauce over the seafood.

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Recipe notes

Tips

  • Keep the stew at a gentle simmer once the seafood goes in; a hard boil can make squid tough and break up the cod.
  • If you are serving anyone who is pregnant, elderly, or immunocompromised, make sure the mussels are fully opened and the fish is cooked through before serving.

Substitutions

  • Replace Cod fillet with sea bass fillet for a similarly firm, flaky fish.
  • Replace Dry White Wine with fish stock for an alcohol-free version; add it in the same amount and simmer for 2 minutes before continuing.

Storage

  • Refrigerate up to 1 days
  • Cool quickly and refrigerate in a sealed container. Reheat gently in a saucepan over a low heat until piping hot, taking care not to overcook the seafood.

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Recipe overview

  • Servings: 4 servings
  • Total time: 1h 20min (35min active)
  • Difficulty: Medium
  • Cuisine: Spanish
  • Allergens:
    Crustaceans Fish Molluscs
One pot

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