Sweet n' Sour Monkfish
2 pounds monkfish tail, cut in 1-inch chunks
Salt and pepper
2 bay leaves
1/2 stalk celery plus 6 stalks celery, cut into 1-inch pieces
1/2 small onion, cut in pieces, plus 3 medium onions, sliced
1/4 cup vegetable oil, as needed for sauteing vegetables
2 medium green peppers, seeded and cut into 1-inch pieces
2 medium sweet red peppers, seeded and cut into 1-inch pieces
One 6-ounce can tomato paste
1 1/2 cups cider vinegar
2 tablespoons sugar
1 1/2 cups green Italian olives, pitted and cut in pieces
4 cups water, for boiling
Instructions:
Season monkfish chunks with salt. In a medium to large pot of water boil bay leaves, 1/2 stalk celery, and small onion for 5 minutes. Add monkfish and cook for an additional 10 minutes. Drain and place monkfish in large bowl; set aside. Discard celery, onion, and bay leaves.  
In large frying pan, saute the celery pieces in vegetable oil until tender; add to fish. Saute red and green pepper pieces, add to fish. Saute the 3 sliced onions for about 5 minutes; add the tomato paste, alternating with the vinegar. Mix well; add sugar and olive pieces and cook for an additional 10 minutes, stirring frequently. Season with salt and pepper. Add vegetable mixture to monkfish and refrigerate. Best when served chilled.
