Instructions

  1. Add the oil and flour to a cast-iron skillet; stir to combine.
  2. Cook over medium heat for about 20 minutes, stirring constantly, until mixture is the color of chocolate (be careful not to burn).
  3. Add in onions, celery, and garlic; cook for 10 minutes, stirring frequently.
  4. Transfer mixture to a large pot.
  5. Add in chicken broth and the next 12 ingredients; let simmer for 2 hours; stir occasionally.
  6. Peel and devein shrimp.
  7. Add in the shrimp, oysters, crabmeat, and fish to the pot; simmer for 10-15 minutes or until seafood is done.
  8. Take out bay leaves.
  9. Serve over hot cooked rice.
  10. Sprinkle with file if desired.