As a former San Franciscan, I make cioppino all the time, here's mine:
San Francisco Cioppino Mio
4 Tbsp OLIVE OIL
1½ cups YELLOW ONION, finely chopped
1 medium GREEN PEPPER, finely chopped
1 medium RED PEPPER, finely chopped
8 cloves GARLIC, finely chopped
2 bulbs fresh FENNEL, trimmed and chopped
1 28oz can "WHOLE TOMATOES with BASIL"
1 28oz can "CRUSHED TOMATOES with PUREE"
1 6oz can TOMATO PASTE
4 cups FISH STOCK (or combination of clam juice and chicken stock)
1 cup DRY WHITE WINE
1½ cups chopped FRESH PARSLEY (½ cup reserved as garnish)
1 tsp DRY THYME
1 tsp DRY OREGANO
1 pinch SAFFRON THREADS
1 BAY LEAF
1 tsp GROUND RED PEPPER
1 tsp EMERIL'S ESSENCE (or more, to taste)
SALT & PEPPER
3lbs firm-fleshed, chunked and partly frozen fish, (HALIBUT, SHARK, SNAPPPER)
2lbs SNOW CRAB LEGS, partially defrosted & cracked
1½ lbs MANILLA CLAMS, cleaned
1½ lbs SMALL MUSSELS, cleaned and debearded
1½ lbs SHRIMP, peeled and deveined
In a large stock pot, heat the oil. Add the onion, peppers, garlic and fennel. Sauté slowly until soft, about 10 minutes. Do NOT brown.
Add the tomatoes, paste, stock, white wine, parsley, thyme, oregano, saffron, bay leaf, ground red pepper, “essence,” salt and pepper. Bring to a boil, reduce heat and simmer for 20-25 minutes.
Season the fish with a little more “essence.” Add the fish and the crab to the pot. Simmer, covered, another 15 minutes. Then, add the clams, mussels, and shrimp and simmer, covered for 10 more minutes or until clams and mussels have opened (discard any shellfish that hasn't opened, it will HURT you!) and the fish is cooked. Serve in large bowls with extra chopped parsley, a loaf of San Francisco sourdough and a salad, die happy! Serves 8.