• 2 pounds dolphinfish fillets
  
• 1/2 cup dark rum
  
• 1/2 cup fresh lime juice
  
• 2 yellow onions sliced into thin rings
  
• 1 lemon sliced
  
• 2 T dried oregano
  
• 4 T butter
  
• salt and pepper to taste
  

2 Preheat oven to 325 degrees

3 Remove fish from the refrigerator and pour off about 3/4 of the liquid. Leave the onion slices in the dish and place a thick slice of lemon on each fish fillet. Sprinkle with oregano and black pepper to taste. Place a pat of butter or margarine on each fillet.

4 Bake, covered, at 350 degrees F (165 degrees C) for about 20 to 30 minutes or until fish flakes easily with a fork. Be careful not to over cook the fish or it will be dry. Serve with the cooked onion and lemon slices.