The real name of this dish is Miroton de la Concierge, and it is currently held that only concierges can do it to perfection. Put a handful of minced onion to fry in butter; when it is nearly cooked, but not quite, add a dessert-spoonful of flour, and stir it till all is well colored. Pour on it a little gravy, or meat-juice of some kind, and let it simmer for ten minutes after it begins to steam again. Then take your beef, which must be cold, and cut in small slices; throw them in and let it all cook for a quarter of an hour, only simmering, and constantly stirring it, so that though it becomes considerably reduced it does not stick to the pan.