02
Meanwhile, add fish to onion mixture, raise heat to high, and stir vigorously until pieces begin to fall apart, 7 to 10 minutes. Add tomatoes, orange peel, celery, thyme, bay leaves, cayenne and pastis. Season with salt and pepper to taste. Reduce heat to medium, and sauté for 10 minutes.
03Add boiling water; simmer 25 minutes.04Working in small batches, pass mixture through a food mill or strainer. Press fish scraps and vegetables through with the aid of the fish broth to ease flow. Allow to cool. Store refrigerated or frozen.