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....