Prep the pan and oven: Heat the oven to 400°F (200°C).
Line a rimmed baking sheet with foil and lightly oil it to keep the skin from sticking.
Pat the salmon dry: Use paper towels to remove surface moisture. This helps the sauce cling and encourages light caramelization. Place the salmon skin-side down on the prepared pan.
Season the fish: Sprinkle the top with 1/2 teaspoon salt and 1/4 teaspoon black pepper.
If your fillet is very thick, season a bit more, especially near the center.
Make the honey garlic butter: In a small bowl, whisk melted butter, honey, minced garlic, lemon zest, lemon juice, soy sauce, and Dijon. Add a pinch of red pepper flakes if you like heat. Taste; adjust salt or lemon as needed.
Sauce the salmon: Spoon about two-thirds of the sauce over the fillet, spreading it evenly.
Reserve the rest for finishing after baking.
Bake: Place the pan on the center rack. Bake 10–14 minutes, depending on thickness. Aim for medium, with the thickest part just turning opaque and flaking easily.
Optional broil for color: For caramelized edges, switch to broil for 1–2 minutes at the end.
Keep a close eye on it so the honey doesn’t burn.
Rest and finish: Let the salmon rest 3 minutes. Spoon the remaining sauce over the top. Shower with chopped parsley or chives.
Serve: Add lemon wedges on the side.
Pair with steamed rice, roasted potatoes, or a crisp green salad.