Cut the meat into small, neat dice. Heat the fat in a stewpan and fry the onion or shallot lightly. Add the flour and cook for about 5 min., stirring all the time. Add the stock, seasoning, a little brown colouring, and the meat. Bring slowly up to the boil, add the mushroom ketchup and simmer very slowly for 1 hr., or until tender. Season if necessary and place on a hot dish. Arrange sippets of bread around the dish and garnish with chopped parsley.