Cook the peaches with all the ingredients up to and including salt over a medium heat for approx. 15 mins. until soft, stirring occasionally; leave to cool.
Mix the vinegar, oil and salt together well in a bowl, add the rocket and stir.
Heat the oil in a wide frying pan. Fry the steaks on both sides for approx. 4 mins., season, serve with peach chutney and rocket.