Shrimp Gumbo
["1/2 c. cooking oil", "1 c. flour", "2 lb. peeled shrimp", "1 onion, chopped", "1 c. chopped celery", "2 c. green onion tops, chopped", "1 c. chopped parsley", "1 Tbsp. file", "salt and pepper to taste", "2 qt. water to start, add more as needed"]
["Make a very brown roux by cooking the flour in the oil, stirring to prevent burning.", "Add chopped white onion, celery, salt and pepper.", "Stir just until glazed.", "Add water and let boil on low for 2 hours.", "Add shrimp and cook for 30 minutes over high fire.", "Add chopped onions, parsley and file.", "Turn fire off and cover.", "Let stand 5 minutes before serving.", "Serve over cooked rice."]
["cooking oil", "flour", "peeled shrimp", "onion", "celery", "green onion", "parsley", "file", "salt", "water"]