For sauce, combine soy sauce, sesame oil, garlic, green onion, hoisin sauce, ginger, and sugar in a small mixing bowl. Mix well adding additional hoisin sauce to thicken mixture if needed. Cover and refrigerate for 1 to 2 hours to blend flavors. To serve, heat sauce in a small saucepan and keep warm. Sprinkle fillets with seasonings and dredge in corn starch or rice flour. Heat oil and butter in a large sauté pan over medium-high heat. When butter foams, add fillets; cook 4 minutes per side or until opaque in center. Transfer fillets to serving plate and serve with sauce on the side.
Nutritional Value Per Serving
Fillet only: Calories 340, Calories From Fat 129, Total Fat 15g, Saturated Fat 5g, Trans Fatty Acid 0g, Cholesterol 78mg, Total Carbohydrates 16g, Protein 34g, Omega 3 Fatty Acid 0.5g Sauce only: Calories 58, Calories From Fat 5, Total Fat 1g, Saturated Fat 0g, Trans Fatty Acid 0g, Cholesterol 0mg, Total Carbohydrates 13g, Protein 3g, Omega 3 Fatty Acid 0g