Croquettes: In a pan put one tablespoon butter saute onion and add chicken and braise till done, keep aside. Boil and mash potatoes, and add the rest and chicken too. Mix well make oblong tubes like croquettes and keep aside, make batter. Batter: Beat all well and keep aside. Flour Mixture: Mix all well How to make Croquettes: Keep a rack on tray, cover each croquette in flour mixture, then dip in egg mixture and keep on rack, do same for all. When done coat with bread crumbs and lay on tray and freeze for an hour or more till firm. Deep fry to golden color and remove on strainer. Lay on platter with kitchen paper on it.