Preheat your oven to 400°F (200°C). Line a baking sheet with foil and place the salmon fillets skin-side down. Pat them dry so the sauce sticks better and the texture stays firm.
In a small bowl, combine melted butter, lemon zest, lemon juice, minced garlic, salt, pepper, and parsley. Stir everything together until well blended. The aroma at this stage is already amazing.
Spoon the garlic butter mixture evenly over each fillet. Make sure the tops are fully coated so every bite is flavorful. Fold the foil around the salmon to create a sealed packet.
Place the baking sheet in the oven and bake for 12–15 minutes. The foil traps steam, keeping the fish moist while allowing it to cook gently. The salmon should turn opaque and flake easily.
Carefully open the foil packet to avoid hot steam. Test the salmon with a fork — if it flakes easily, it’s ready. Transfer to plates and spoon extra garlic butter from the foil over the top.