I slice potatoes and onions, boil until really done, turn off burner add canned evaporated milk and a stick of butter, boil again put in celery seeds and make a flour and water mixture, like for gravy, add that and salt and pepper to taste. I like mine kind of thick and potatoes mushy and broke up. Put in parsley. I got this out of an old southern cookbook a late Brother gave me when I got married in 1961.