Preheat the Oven Set your oven to 400°F (200°C) so it’s ready to finish cooking the salmon after searing.
Prep the Salmon Pat the salmon fillets dry with paper towels, especially the skin side. This helps the skin crisp up in the pan.
Make the Mustard Glaze In a small bowl, mix your glaze ingredient. Adjust to taste and set aside.
Sear the Skin Side Heat an oven-safe skillet (like cast iron) over medium-high heat. Add a small amount of oil. Place the salmon skin-side down in the pan and sear for 3–4 minutes, or until the skin is crispy and browned.
Add the Glaze While the salmon is still in the pan, spoon the mustard glaze over the top of each fillet.
Bake to Finish Transfer the skillet to the preheated oven. Bake for 6–8 minutes, depending on thickness, or until the salmon flakes easily with a fork and reaches an internal temperature of 125–130°F (52–54°C) for medium.
Rest and Serve Let the salmon rest for a couple minutes before serving. Garnish with chopped parsley or dill if desired.
