01 - Pat the salmon fillets thoroughly dry with paper towels, focusing on the skin side to ensure crispiness.
02 - Generously season both sides of the salmon with kosher salt and freshly ground black pepper.
03 - Warm the oil in a large nonstick or cast-iron skillet over medium-high heat until shimmering without smoking.
04 - Carefully lay the salmon fillets skin-side down in the skillet and press gently with a spatula for 10 to 20 seconds to prevent curling.
05 - Cook without moving for 5 to 7 minutes until the skin is deeply golden and crisp, and the flesh is mostly opaque.
06 - Turn the salmon over and cook for another 1 to 2 minutes until just cooked through yet moist at the center.
07 - Transfer the fillets to plates skin-side up. Finish with a squeeze of lemon and sprinkle chopped herbs if desired.