Place chicken breast halves between sheets of waxed paper and pound slightly.  Sprinkle with salt and pepper.  Heat oil and butter together in a large frying pan.  Cook over med. high heat 4 minutes each side.  Place on a serving dish and set in warm oven.

Add onions, lime juice, brandy, parsley and mustard to pan.  Cook 15 seconds, whisking constantly.  Whisk in broth, stirring until sauce is smooth.

Pour over warm chicken and serve with noodles or new potatoes and a salad.  Serves 4.