Teriyaki Sea Bass

- Chilean sea bass steak or fillet
 
 for marinade sauce:- 1  tbls fresh ginger (finely chopped)
 - 2  tbls sake  
 -  5 tbls miso  
 - 1 tbls soy sauce  
 - 1 tsp coarse sea salt
 
for teriyaki sauce
- 1 tbls sugar
 - 4 tbls sake
 - 4 tbls mirin
 - 4 tbls soy sauce
 
- rub the sea salt into the fish
 - mix ingredients for the marinade sauce
 - marinate the fish in the sauce in a sealed plastic bag for a day
 - prepare teriyaki sauce: mix ingredients in a saucepan and bring to a boil, over medium heat till sugar is dissolved and the sauce thickened.
 - preheat a cast-iron skillet in the oven to 450 degree
 - dry the fish with paper towel, coat the fish with  the teriyaki sauce
 - put the fish in the hot cast-iron skillet and return the skillet to oven
 - turn the oven to broil to broil the fish till slight brown, about 15 minutes
 - garnish the plate with pickled ginger or sliced turnip, serve hot