Heat the oil in a large skillet over medium-high heat. Season the salmon filets (or fish if using) on both sides with salt and pepper, and sear in the hot pan, flesh-side down first, for 5 minutes on each side, or until cooked to your liking
Position a rack in the middle of the oven. Preheat oven to 375°F | 190°C. Line a baking sheet with a large piece of foil, or 2 long pieces of foil over lapping each other lengthways if your salmon is wide
