Ingredients:

• 1 to 1 1/2 pounds black cod fillets, skin on or skinless
• 1/4 cup sake
• 1/4 cup rice vinegar
• 1/4 cup canola, rice bran or other neutral oil
• 2 tablespoons soy sauce
• 1 tablespoon minced fresh ginger
• Dark sesame oil, for garnish
• 3 green onions, thinly sliced on the diagonal, for garnish
• 1 tablespoon toasted sesame seeds, for garnish