Anthony Bourdain's Soupe de Poisson

Ingredient:

• 6 tablespoons olive oil
• 4 garlic cloves
• 2 small onions, thinly sliced
• 2 leeks, white parts only, washed and thinly sliced
• 1 fennel bulb, thinly sliced
• 1 (14-ounce) can plum tomatoes, chopped
• 2 pounds tiny whole fish (like porgy or whiting), gutted but with heads intact
• 6 cups water
• 1 bouquet garni (1 parsley sprig, 2 thyme springs, and 1 bay leaf, wrapped in cheesecloth bundle)
• 2 strips orange zest
• 3 saffron strands
• Salt
• Pepper
• 1 ounce Pernod
• Croutons
• Rouille
• Grated Parmesan