Soak the plank in water for at least 45 minutes (or soak ahead of time and freeze).
Rub the plank with olive oil, placing it in the oven while you preheat to oven.
Place salmon skin-side down on plank. Massage 2 Tbsp. olive oil into the salmon; sprinkle with the seasoning. Bake until firm, and flakes easily, about 15 minutes.
