Preheat oven to 200°F.
Cut the skinned rockfish filet into 3-4 serving sections. Pat dry with paper towels.
Lightly salt and pepper both sides.
Dredge both sides into the flour; shake off any excess.
Set heat to MED-HIGH. In a 12" skillet( I used a non-stick), add 4 T of the clarified butter; swirl to coat the pan. If using a smalller pan where you are cooking 2 portions at a time, use 2-3 T.
Cook portions 2-3 minutes. Turn over and cook an additional 2-3 minutes. It should appear lightly golden. Place rockfish on a rack over a rimmed baking sheet, Sprinkle with the chopped parsley. Then, place pan in oven while you complete the sauce.