Ingredients
Set oven to Broil on High or roast at 425 F (220 C).
In a small saucepan, combine mirin and sake. Bring to a gentle simmer for 1-2min to cook off some alcohol.
Add the sugar and stir/whisk until dissolved.
Reduce heat to low and add miso paste. Stir/whisk until smooth.
Remove from heat and stir in soy sauce and peanut oil (or sesame oil substitute)
Let cool.
Coat the salmon generously.
refrigerate for: 6-12 hrs for lighter flavor, 24-48 hrs for a more intense flavor.
Marinade
Marinate
Cook
Scrape off excess marinade while leaving a thin coating.
Broil/roast the salmon for 8-12 min depending on thickness until it reaches your preferred doneness.
Optional: finish under the broiler for 1-2 min.