Ingredients

1/4 cup extra-virgin olive oil 

1 medium onion, thinly sliced 

4 garlic cloves, minced 

1 dried bay leaf 

2 tablespoons finely chopped fresh oregano 

2 tablespoons finely chopped fresh flat-leaf parsley 

1/2 teaspoon crushed red-pepper flakes 

2 cups dry white wine 

2 cups fish stock 

1/2 cup clam juice 

28 ounces crushed tomatoes, with juice 

15 ounces plum tomatoes, drained, chopped 

6 cherrystone clams, scrubbed 

6 mussels, scrubbed, debearded 

6 sea scallops, muscles removed 

8 ounces cod or other white fish, cut into 1-inch pieces 

8 ounces cleaned squid, bodies cut into rings 

6 large shrimp, peeled, tails intact, deveined 

Preparation

Heat oil in a large pot over medium-high heat. Add onion, garlic, and bay leaf. Cook until onion is translucent, about 5 minutes. Add oregano, parsley, and red-pepper flakes. Cook 1 minute. Add wine, stock, clam juice, and tomatoes. Reduce heat; simmer gently 30 minutes. (You can make soup to this point up to 2 days ahead, and chill. Reheat; add seafood.)

Add clams; cook, covered, for 10 minutes. Add mussels; cook, covered, checking often and using tongs to transfer open clams and mussels to a bowl. Discard any that do not open. Add scallops, cod, squid, and shrimp to pan; simmer gently until seafood is cooked through, about 5 minutes. Gently stir in cooked clams and mussels; ladle into bowls, and serve.