Combine 1 teaspoon each salt and pepper. Sprinkle half of salt and pepper mixture in bottom of a large nonstick skillet. Arrange salmon, skin side down, in skillet; heat to medium high and sprinkle with remaining salt and pepper over top.
Cook salmon, without moving, until fat begins to render and skin starts to brown, 6–7 minutes. Flip, cook until flesh side starts to brown, 6–8 minutes more. Transfer to a plate and let cool.
Serve as desired.
For the best results, use thick salmon fillets, preferably center-cut.Use kosher salt—not table salt. Table salt will make the salmon too salty.