Return the beef to the pan. Whisk the flour and wine together in a bowl to make a smooth paste, whisk in the stock and then add it to the pan with the Worcestershire sauce, sugar and thyme.
Preheat the oven 200C/400F/Gas 6. Grease a shallow 2.5 litre/4½pint dish with butter. Melt the butter in a pan on a high heat and fry onion for few minutes. Lower the heat, cover and leave to ...