Prepare the Marinade
In a small bowl, whisk together white miso, soy sauce, brown sugar, sesame oil, garlic, and ginger. Mix until smooth and glossy — the texture should be like a thin paste.
If you have time, let the marinade sit for 5 minutes so the flavors meld (and so you can sneak a little taste-test).
Marinate the Salmon
Place your salmon fillets in a shallow dish or resealable bag. Spoon the miso mixture over the top, coating all sides evenly.
Let it marinate for at least 15 minutes at room temperature, or up to 1 hour in the fridge for a deeper flavor. The longer it sits, the more the miso and soy soak into the salmon’s buttery flesh.
Preheat the Oven
Set your oven rack in the middle position and preheat your oven to 425°F.
Line a baking sheet with parchment paper (for easy cleanup) and lightly brush it with olive oil to prevent sticking.
Bake or Broil
Place the salmon fillets skin-side down on the baking sheet. Spoon any remaining marinade on top.
Bake for 10–12 minutes, or until the salmon flakes easily with a fork and the glaze looks glossy and caramelized.
For that golden finish, switch your broiler to high and broil for 1–2 minutes. Keep a close eye — the sugar in the glaze can burn quickly (but that little char? Absolute perfection).
Garnish and Serve
Remove from the oven, sprinkle with sesame seeds and chopped green onions, and squeeze a little fresh lemon juice on top.
That’s it — your miso glazed salmon is ready to impress!
Serve immediately while it’s tender and hot, or let it cool for meal prep lunches throughout the week.