A lovely way to do salmon.
Two 8-10 oz salmon fillets, skin removed, about 1" thick
4 TB butter at room temperature
4 TB minced fresh chives
1 TB vegetable oil
Mash the butter with the chives. Preheat oven to 250F. Form a tray out of heavy duty aluminum foil that is just large enough to hold the fillets, and place tray on a baking sheet (or, if you have it, use a baking pan of the right size). Heat a cast iron skillet over high heat until quite hot. Dry the fillets with paper towels, season with salt and pepper, and rub on both sides with the oil. Cook in skillet for about 1-1/2 minutes per side to brown both sides. Transfer fillet to tray and spread chive butter on top. Bake for about 10 minutes. Transfer to serving plate and drizzle with melted butter from the baking tray. I like this served with mashed potatoes.