Sopa de Mariscos (Spanish Seafood Soup)

Emma Sullivan By Emma Sullivan February 2, 2025 4.9 (198 reviews)
Jump to Recipe
Sopa de Mariscos (Spanish Seafood Soup)

Sopa de Mariscos is one of Spain's most beloved seafood soups. A golden saffron-infused fish stock forms the base, enriched with fresh tomatoes, a hint of smoky paprika, and the warmth of white wine. The soup is loaded with tender white fish, sweet prawns, and delicate squid rings - a true taste of the Spanish coast in every spoonful.

This soup captures everything wonderful about Spanish coastal cuisine: quality seafood cooked simply, aromatic saffron, smoky pimentón, and fresh tomatoes. It's the kind of soup you'd find in a seaside restaurant in Barcelona or Valencia, where the catch of the day goes straight from boat to bowl.

The Essence of Spanish Seafood Cooking

What makes Spanish seafood cooking special is its restraint. Rather than overwhelming ingredients with heavy sauces, Spanish cooks let the natural flavors of the sea shine through. The saffron adds subtle floral notes, the smoked paprika provides depth without overpowering, and fresh tomatoes contribute sweetness and acidity that brightens everything.

The technique is straightforward but requires attention: build flavor in layers, don't overcook the seafood, and finish with a squeeze of lemon to bring it all together.

The Magic of Saffron

Saffron is the soul of this soup. The world's most expensive spice by weight, it's made from the stigmas of crocus flowers - each flower produces only three threads, and it takes about 75,000 flowers to produce a single pound of saffron. Thankfully, a little goes a very long way.

The key technique is blooming the saffron: steeping it in warm liquid for 10-15 minutes before adding to the soup. This releases its color, flavor, and aromatic compounds far more effectively than adding it dry. You'll see the stock turn a beautiful golden color - that's how you know it's working.

About Smoked Paprika (Pimentón)

Pimentón de la Vera is Spanish smoked paprika, named after the La Vera region where peppers are slowly dried over smoldering oak fires. This gives it a distinctive smoky flavor unlike any other paprika. It comes in three varieties:

  • Dulce: Sweet and mild - best for this soup
  • Agridulce: Bittersweet with medium heat
  • Picante: Hot and spicy

If you can't find pimentón, regular sweet paprika works but adds a drop of liquid smoke for that characteristic Spanish flavor.

Choosing Your Seafood

Traditional sopa de mariscos uses whatever's freshest at the market. This recipe calls for:

  • White fish: Firm-fleshed fish like snapper, cod, or monkfish that won't fall apart
  • Prawns: Green (raw) prawns, peeled with tails intact for easy eating
  • Squid: Cleaned tubes cut into rings - cook quickly to stay tender

Feel free to adapt based on availability. Mussels, clams, scallops, or even lobster make excellent additions for special occasions.

Tips for Perfect Sopa de Mariscos

  • Quality saffron: It's the star ingredient - invest in the best you can find
  • Bloom first: Always soak saffron to release its full potential
  • Don't overcook seafood: Add in order of cooking time - fish first, then prawns and squid
  • Fresh tomatoes: Peak-season tomatoes make a noticeable difference; use canned in winter
  • Finish with acid: The lemon juice at the end brightens everything

Serving Suggestions

In Spain, sopa de mariscos is typically served as a substantial first course or light main with:

  • Pan con tomate: Crusty bread rubbed with ripe tomato and drizzled with olive oil
  • Aioli: Garlic mayonnaise for dipping bread or swirling into the soup
  • Crisp white wine: A Spanish Albariño or Verdejo pairs perfectly
  • Fresh parsley: Generously scattered for color and freshness

Make-Ahead Tips

The base (broth with aromatics and tomatoes) can be made up to a day ahead and refrigerated. When ready to serve, bring back to a simmer and add fresh seafood. Never reheat soup with already-cooked seafood - it becomes tough and rubbery.

Fresh ingredients gathered and ready for this recipe.
Fresh ingredients gathered and ready for this recipe.

Sopa de Mariscos (Spanish Seafood Soup)

Traditional Spanish seafood soup with saffron-infused fish stock, white fish, prawns, squid, fresh tomatoes, and smoked paprika.

Prep: 20 min
Cook: 25 min
Total: 45 min
Servings:
6

Nutrition per serving

225 Calories
30g Protein
12g Carbs
7g Fat
2g Fiber
6g Sugar

Ingredients

Instructions

  1. Bloom saffron. Soak saffron in stock for 10 minutes.
  2. Cook aromatics. Sauté onion 5 minutes. Add garlic, chilli, paprika. Cook 1 minute.
  3. Add liquids. Add wine and reduce. Add saffron stock and tomatoes. Simmer 5 minutes.
  4. Cook seafood. Add fish, prawns, squid. Cook 5 minutes. Finish with lemon juice.
  5. Serve. Sprinkle with parsley and serve.

Recipe Notes

  • Canned tomatoes: Use a 400g can of quality diced tomatoes when fresh aren't in season.
  • Add shellfish: Scrubbed mussels or clams added in the last 4-5 minutes are traditional and delicious.
  • Serve with: Crusty bread rubbed with garlic and ripe tomato, drizzled with olive oil (pan con tomate).
  • Make ahead: Base can be prepared a day ahead; add fresh seafood when serving.