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["After catching and killing the fish, pop it into boiling water for a few seconds to help remove the slimy coating. Though a knife will often be all that's needed to scrape it away, any remaining vestiges can be rubbed off the skin with a rough cloth. Cut off the tail (usually about 6 inches long), then tie a string around the head and suspend the fish over the sink to drain the blood. Open bronchial holes on the side of the fish and allow the blood to empty Then, remove the intestines and notocordium (the long, dark bitter-tasting organ running down the abdomen). Rinse the fish again and then decapitate it by slicing around the body and pulling off the head. If you don't want crunchy lamprey, make sure the thick, bony cartilage comes out with the head. Discard both.", "Cut cleaned fish into 3"" lengths.", "Combine in a pan with the mushrooms, parsley, wine and pearl onions; season to taste with nutmeg, salt and black pepper.", "Bring to a simmer; cover and cook slowly for about 40 minutes, or until the lampreys are very tender.", "Whisk in the flour and butter; mix until smooth, bring to a boil and cook for 5 minutes or until thickened.", "Turn into individual bowls and serve."]
