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Siete Mares Soup served in a decorative blue bowl surrounded by toppings and a Mexican loteria card.
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5 from 2 votes

Caldo de Siete Mares

Caldo de Siete Mares (or Mexican Seven Seas Soup) is full of flavor and hearty goodness. It’s made of different types of seafood simmered in a rich chile broth.
Prep Time25 mins
Cook Time15 mins
Total Time40 mins
Course: Dinner
Cuisine: Mexican
Servings: 4 people
Calories: 148kcal


For the Sauce

  • 4 guajillo chiles (stem removed, seeds removed)
  • 2 cups water (for rehydrating)
  • 2 tomatoes
  • 1/4 onion rough chopped
  • 1 garlic clove
  • 2 cups water (for blending)
  • 1 tsp salt

Homemade Shrimp Broth:

For the Soup:

  • 2 tbsp Mazola® Corn Oil
  • 1 octopus (diced)
  • 1/2 lb oysters (shucked)
  • 4 clams
  • 1/2 lb cod fish (or any firm white fish)
  • 4 scallops
  • 4 pieces snow crab legs


For the Sauce:

  • Place the guajillo chiles in a stock pot and cover with water.
  • Bring to a boil.
  • Turn heat off, and let sit for 5-7 minutes.
  • Drain water.
  • Place the rehydrated chiles, tomatoes, onion, garlic, 2 cups water, and salt in a blender.
  • Blend until smooth.

For the Homemade Shrimp Broth:

  • Remove the shells from the shrimp.
  • (note: use already deveined shrimp)
  • Set the shrimp aside and in the fridge.
  • Place the shrimp shells along with the onion, garlic, bay leaf, water, salt, and pepper.
  • Boil for 20 minutes.
  • Remove and discard the shells.
  • Set the shrimp broth aside.

For the Soup:

  • Heat the oil in a large stock pot.
  • Strain the sauce into the pot.
  • Be careful. It might splatter.
  • Cook for 2-3 minutes.
  • Add the shrimp broth.
  • Stir to combine.
  • Add the octopus, oysters, shrimp, fish, clams, scallops, and snow crab legs.
  • Bring to a boil.
  • Turn heat off.
  • Serve and enjoy.



You can mix and match whatever type of seafood you find at the store. Other seafood options - mussels, lobster, or baby scallops. 
Very Important: Use a thick, meaty fish like cod, monkfish, pollock, or halibut. 
To bring down the cost of the soup, use frozen seafood. OR, add more of the less expensive ingredients and only add a few of the more pricey ingredients.
If you would like to add carrots or potatoes, add them when you are heating the oil and straining the sauce. 


Calories: 148kcal | Carbohydrates: 7g | Protein: 12g | Fat: 8g | Saturated Fat: 1g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 30mg | Sodium: 1267mg | Potassium: 497mg | Fiber: 2g | Sugar: 4g | Vitamin A: 1477IU | Vitamin C: 12mg | Calcium: 54mg | Iron: 1mg