Christmas Eve Seven Fishes Stew

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The advantage of this savory brew is that it will welcome virtually any kind of shellfish or fish you find at the market. Squid, scallops, and chunks of firm white fish such as monkfish, halibut, bass, or whatever is fresh and local can be used instead of, or in addition to, the options below.*

2 tablespoons olive oil
1 large fennel bulb, stalks and fronds removed, thinly sliced
I onion, chopped
3 large shallots, chopped
2 teaspoons kosher salt, plus more to taste
3 large garlic cloves, minced
¾ teaspoon dried crushed red pepper flakes, plus more to taste

1/4 cup tomato paste
1 (28-ounce) can diced tomatoes in juice
1 1/2 cups dry white wine
5 cups fish stock
1 bay leaf
1 pound manila clams, scrubbed
1 pound mussels, scrubbed, debearded
1 pound uncooked large shrimp, peeled and deveined
1 1/2 pounds assorted firm-fleshed fish fillets such as halibut or salmon, cut into 2-inch chunks

Heat the oil in a very large pot over medium heat. Add the fennel, onion, shallots, and salt and saute until the onion is translucent, about 10 minutes. Add the garlic and 3/4 teaspoon of red pepper flakes, and sauté 2 minutes. Stir in the tomato paste. Add tomatoes with their juices, wine, fish stock and bay leaf. Cover and bring to a simmer. Reduce the heat to medium-low. Cover and simmer until the flavors blend, about 30 minutes.

Add the clams and mussels to the cooking liquid. Cover and cook until the clams and mussels begin to open, about 5 minutes. Add the shrimp and fish. Simmer gently until the fish and shrimp are just cooked through, and the clams are completely open, stirring gently, about 5 minutes longer (discard any clams and mussels that do not open). Season the soup, to taste, with more salt and red pepper flakes.

Ladle the soup into bowls and serve.