This is the way Ive seen it done. Scrape the meat off the bones and combine it with green onions and cajun seasoning in a meat grinder. Boil as many pounds of potatoes that you have in fish. Combine the fish and potatoes then roll into balls dip into egg/milk and cover with corn flour not corn meal. Fry until they float. I also have heard of people boiling the fish first wrapped in cheesecloth, using a crab boil then mixing with potatoes.