Prep the oven and pan. Heat your oven to 400°F (200°C). Line a sheet pan with foil or parchment for easy cleanup.
Lightly oil the surface so the salmon doesn’t stick.
Pat the salmon dry. Use paper towels to remove moisture from the fillets. Dry fish browns better and helps the glaze cling. Season both sides with the salt and pepper.
Make the glaze. In a small bowl, whisk together the sweet Thai chili sauce, soy sauce, lime juice, rice vinegar, ginger, garlic, and sesame oil.
If you like it spicy, stir in red pepper flakes or a bit of sriracha.
Oil and arrange. Drizzle the salmon with the neutral oil and place it skin-side down on the pan (if using skin-on). Leave a little space between fillets so they roast evenly.
Brush and bake. Spoon or brush about two-thirds of the glaze over the salmon. Bake for 8–10 minutes, depending on thickness.
A general guide is 4–6 minutes per 1/2 inch of thickness.
Glaze again and finish. Pull the pan out, brush the remaining glaze over the top, and return it to the oven. Bake another 2–4 minutes until the salmon flakes with a fork and the glaze looks shiny and slightly sticky.
Optional broil. For extra caramelization, switch to broil for 1 minute at the end. Watch closely to prevent burning.
You want light char at the edges, not a blackened top.
Rest and garnish. Let the salmon rest for 2–3 minutes. Top with green onions, sesame seeds, or cilantro. Serve with lime wedges for an extra squeeze of brightness.