You need 1 ingredient. The key ingredients include: ["Fish Stew", "2 ounces thick-cut bacon, cut into 1/4"" cubes", "1 medium onion, chopped into 1/4"" pieces", "1 tablespoon flour", "1/4 cup dry white wine", "3 cups fish stock (recipe follows)", "4 small new potatoes, red skin scrubbed and left on, cut into 1/2"" pieces", "1 medium turnip, peeled and cut into 1/2"" pieces", "1 branch of celery, cut into small pieces, about 1/4"" thick", "1/2 teaspoon fresh thyme, minced", "1 bay leaf", "Salt and freshly ground pepper to taste", "1 pound cod fillets, rinsed, patted dry and cut into 3"" chunks (they'll break up once cooked)", "1/2 cup heavy cream", "2 tablespoons parsley, minced", "1 tablespoon chives, minced", "Fish Stock (makes about 8 cups; freeze leftover)", "2 tablespoons olive oil", "1 large onion, chopped", "1 celery stalk, chopped", "3 dried shitake mushroom (optional but good to keep in your pantry for flavor boosting)", "2 cloves garlic, crushed", "3 pounds fish heads, bones, fins - or whatever treats your fishmonger gives you... Rinse before using", "3 cups dry white wine", "6 cups water", "1 fistful of parsley stems", "2 sprigs fresh thyme", "5 whole black peppercorns", "1 bay leaf", "1 teaspoon salt"].