01 - Pat salmon fillets dry with paper towels and season both sides with salt and pepper.
02 - Heat olive oil in a large skillet over medium-high heat. Add the salmon, skin-side down if using skin-on fillets, and sear for 4–5 minutes without moving, until golden and crisp.
03 - Flip the salmon and cook for another 2–3 minutes until just cooked through. Remove from the skillet and set aside.
04 - In the same skillet, reduce heat to medium. Add the butter and let it melt, then add the minced garlic. Sauté for 30 seconds until fragrant.
05 - Stir in lemon juice and parsley.
06 - Spoon the garlic butter sauce over the cooked salmon fillets. Garnish with extra parsley and lemon slices. Serve immediately.