Salt and pepper In a large skillet or dutch oven heat the butter and oil over moderately high heat. When the foam subsides, thoroughly brown the meat a few pieces at a time and remove to a side dish. Cook onions and apples in the same fat until lightly browned, and add to the meat. Add the curry powder and cook slowly for a few minutes. Whisk the flour into the beef stock, pour over the curry mixture, whisking to prevent lumps. Heat to simmer, stirring constantly. You want a smooth, thickened sauce. Add remaining ingredients, simmer a few minutes more and return the meat, onions and apples to the pan. Cover and set in the middle of a preheated 350 degree oven for 2 hours. Serve with plain boiled rice.