Salmon Prep: Dry the salmon using paper towels. Apply a mix of salt, pepper, smoked paprika, and dried thyme generously on both sides.
Warm the Cast Iron Skillet: Position your skillet over medium-high heat. Allow it to warm for around 3-5 minutes till it's sizzling hot.
Add Oil: Pour 2 tablespoons of olive oil once the skillet is heated, ensuring it coats the entire skillet with a quick swirl.
Cook the Salmon: Put the salmon in the skillet, skin down if you kept the skin. Use a spatula to gently press, securing that the whole skin touches the skillet. Hold your horses and wait for about 3-5 minutes without disturbing the fillets to achieve a crispy, golden brown skin.
Turn over the Salmon: Maneuver the salmon adeptly to flip using tongs or a spatula. Incorporate minced garlic and butter (optional) into the skillet. Let it cook for an extra 2-3 minutes while coated with garlic butter until it's cooked to your taste (a 125-130°F internal temperature for medium).
Lemon Juice & Herbs: Drip some fresh lemon juice over the salmon and dust it with fresh herbs such as thyme or parsley for a kick of flavour.
Serve: Finally, transfer the salmon to a plate, decorate with lemon and fresh herbs, and serve without delay.