Preheat oven to 400°F.
Lightly season the tops of the salmon filets with kosher salt and cracked black pepper.
In a small bowl, whisk together the miso, yuzu, soy sauce, honey, ginger, rice vinegar and sesame oil. Set aside 1 tablespoon of the marinade.
Generously brush the tops of the salmon with the miso yuzu sauce and let it marinade for 15-30 minutes.
Line half the sheet pan with parchment paper and transfer the salmon to the parchment section of the sheet pan. Bake for 12-14 minutes until internal temperature reaches 125°F. Then brush the reserved marinade on the salmon and broil for 1-2 minutes until the tops are slightly charred. You can also use a hand torch in place of broiling.
Garnish the tops of the salmon with chopped scallions and sesame seeds.