02
Heat the oil in a large skillet, brown the steak on both sides and remove to a suitable covered baking dish. Pre-heat oven to 300 degrees.
03Add onion to the skillet and cook, stirring often, until lightly browned. Add mushrooms and cook, stirring, until lightly browned. Add tomato puree, Cognac, wine, stock, thyme, savory, marjoram, bay leaf, salt and pepper, and bring to a boil. Pour mixture over steak, cover and bake 2 hours or until very tender.04Carefully remove steak to a deep serving platter. Skim surface fat from the sauce in the baking dish, check seasonings and pour around steak. Pass any extra sauce at the table. Serve with mashed potatoes.