Step 1

In a small bowl, mix together paprika, cayenne pepper, white pepper, black pepper, salt, onion powder, garlic powder, thyme, and oregano.

Step 2

Heat a large cast iron skillet over high heat for 10 minutes, or until extremely hot.

Step 3

Dip fish into melted butter, and sprinkle each fillet generously with the seasoning mixture. Place the fish fillets in the hot skillet. Pour 1 tablespoon of butter over each fillet. Cook until the coating on the underside of the fillet turns black, 3 to 5 minutes. Turn the fish over. Pour another tablespoon of butter over the fish, and cook for 2 minutes, or until fish flakes easily with a fork.