Tangy Flounder Or Sole

Grrrrrgh!
Course : Fish
From: HungryMonster.com
Serves: 4
 

Ingredients:

1 1/4 pounds flounder or sole fillet
1/4 cup balsamic vinegar
1/4 cup lemon juice
1 teaspoon dried mustard powder
1 small yellow onion -- chopped
2 teaspoons fresh or 1 tsp dried parsley
1 medium lemon slices -- optional
 

Preparation:

Rinse and pat dry fish fillets. Place fish in 10-inch by 8-inch oven-proof glass or stainless steel baking dish. Combine vinegar, lemon juice, dried mustard powder, and chopped onion in a small mixing bowl. Pour over fillets. Cover dish and marinate fish in refrigerator for approximately 2 hours. Preheat broiler. Remove cover from dish and place dish in broiler for approximately 4 to 6 minutes, or until fish is white and flaky throughout. Garnish with parsley and onion slices.