Preparation Steps

• Begin by removing any excess moisture from the salmon fillet with a paper towel and sprinkle the salmon fillet with salt and pepper. Set aside.
• Prepare the marinade by placing olive oil, lemon juice, dijon mustard, honey, dill, salt, and garlic into a bowl and whisking until all ingredients are combined.
• Place a large piece of tin foil onto a baking sheet, fold up the edges to contain liquid, and pour the marinade onto the foil.
• Lay the salmon fillet skin side up into the marinade and let it sit for 15-30 minutes.
• Preheat the oven to 375ºF.
• Flip the salmon over to skin side down and lay lemon slices and dill sprigs on top.
• Wrap the salmon carefully in the foil, folding all edges so no air escapes.
• Bake the salmon for 25-35 minutes, depending on thickness.
• Prepare tartar sauce by mixing all ingredients in a bowl and refrigerate.
• Check if salmon is cooked; it should be pink and flake easily.
• Remove from oven, discard dill and lemon slices, and turn oven to broil.
• Top the salmon with cold butter and broil uncovered for 2-5 minutes until caramelized.
• Let rest for 5 minutes, then serve with tartar sauce.