Ingredients

• 1/3 teaspoon salt
• Pepper (to taste)
• ½ cup orange juice
• 1 tablespoon wine vinegar
• 2 teaspoon soy sauce
• 1 teaspoon granulated sugar
• 1 teaspoon Dijon mustard
• 1 tablespoon unsalted butter
• 1 tablespoon chopped fresh parsley

Directions

• Directions
• Place ¾ of the onion in oven proof 11 x 6 inch baking dish. Top with sole and remaining onion.
• Sprinkle with orange rind, salt, and pepper to taste.
• Combine orange juice, vinegar, soy sauce, sugar and mustard; pour over fish.
• Cover with foil and bake 350f oven for 10 to 12 minutes or until fish is opaque and flakes easily when tested with fork, set aside.
• Pour contents of baking dish into skillet and bring to boil over high heat; cook for about 5 minutes or until reduced to about ½ cup.
• Stir in any accumulated liquid from fish; remove from heat and whisk in butter.
• Pour sauce over fish; sprinkle with parsley.