Ingredient:

• ½ teaspoon ground cayenne pepper
• ½ teaspoon ground white pepper
• ½ teaspoon ground black pepper
• 1 ½ teaspoons paprika
• ½ teaspoon dried thyme
• ½ teaspoon dried oregano
• 1 bay leaf, crushed
• 1 teaspoon salt
• ¾ cup vegetable oil
• 2 cups chopped celery
• 2 cups chopped onion
• 2 cups chopped green bell pepper
• 1 teaspoon minced garlic
• 3 tablespoons file powder
• 2 teaspoons hot pepper sauce
• 1 ½ cups tomato sauce
• 7 cups fish stock
• 2 cups shucked oysters
• 1 cup crabmeat
• 1 pound small shrimp - peeled and deveined, shells reserved for stock