Sweet and Sour Cabbage

• 2 oz / 60 g butter
• 1 lb / 455

Heat the butter in a heavy frying pan or wok. Stir in the cabbage, and after a minute or so, add the brown sugar. Cook a little longer and then add the vinegar. Raise the heat, and stir vigorously for 20 seconds. Serve while the cabbage is still slightly crunchy and with the pan juices poured over it.