Pat the salmon dry and season with a pinch of salt. A dry surface = crisp skin. Trust me on this.
In a small bowl, whisk together soy sauce, honey, vinegar, sesame oil, garlic, and ginger. This is your glaze—give it a little stir and a big smile.
Heat a nonstick skillet over medium-high heat. Place salmon skin-side down and cook 4–5 minutes until the skin is crispy and the flesh is nearly cooked through.
Flip the fillets and pour the glaze into the pan. Let it simmer a minute to get a little bubbly. If you want it thicker, stir in the cornstarch slurry and cook 1–2 more minutes until glossy.
Remove from heat. Spoon extra glaze over the fillets and sprinkle with sesame seeds and green onions. Serve hot and shiny.