PreparationFor Sauce: Combine broth and cornstarch in small bowl and stir until cornstarch dissolves. Add remaining ingredients and stir to blend. For Fish: Place sea bass in large baking pan. Spoon sake, soy sauce and 2 tablespoons oil over. Sprinkle with 3 tablespoons ginger. (Can be prepared 4 hours ahead. Let sauce stand at room temperature. Cover fish and refrigerate.) Preheat oven to 425°F. Bake fish 9 minutes per inch of thickness. Meanwhile, heat remaining 2 tablespoons vegetable oil in heavy large skillet over high heat. Add remaining 3 tablespoons minced ginger and stir until aromatic, about 30 seconds. Add carrots and stir-fry until beginning to soften, about 2 minutes. Add mushrooms and stir-fry until beginning to soften, about 1 1/2 minutes. Add green onions and stir to coat. Stir sauce ingredients to blend and add to skillet. Cook until sauce thickens, stirring constantly, about 2 minutes. Transfer fish to plates. Spoon vegetables and sauce over and serve.
PreparationFor Sauce: Combine broth and cornstarch in small bowl and stir until cornstarch dissolves. Add remaining ingredients and stir to blend. For Fish: Place sea bass in large baking pan. Spoon sake, soy sauce and 2 tablespoons oil over. Sprinkle with 3 tablespoons ginger. (Can be prepared 4 hours ahead. Let sauce stand at room temperature. Cover fish and refrigerate.) Preheat oven to 425°F. Bake fish 9 minutes per inch of thickness. Meanwhile, heat remaining 2 tablespoons vegetable oil in heavy large skillet over high heat. Add remaining 3 tablespoons minced ginger and stir until aromatic, about 30 seconds. Add carrots and stir-fry until beginning to soften, about 2 minutes. Add mushrooms and stir-fry until beginning to soften, about 1 1/2 minutes. Add green onions and stir to coat. Stir sauce ingredients to blend and add to skillet. Cook until sauce thickens, stirring constantly, about 2 minutes. Transfer fish to plates. Spoon vegetables and sauce over and serve.