Select as many salt MACKEREL as required; wash and cleanse them well, then put them to soak all day in cold water, changing them every two hours; then put them into fresh water just before retiring. In the morning drain off the water, wipe them dry, roll them in flour, and fry in a little butter on a hot, thick-bottomed frying pan. Serve with a little melted butter poured over, and garnish with a little parsley.
The Whitehouse Cookbook, by Mrs. F.L. Gillette (Year 1887)