Braaied, Marinated Beef Fillet

• 1.2 kg beef fillet
• sprigs of young rosemary
• 2 sprigs marjoram/oregano leaves

Smear the beef fillet with the wholegrain mustard and tie with water-soaked cotton string. Thread sprigs of rosemary and other herbs through the string. Sear the beef fillet over a very warm direct fire and season with coarse salt and freshly ground black pepper. Scatter the beef fillet with balsamic vinegar. Return to a medium heat until cooked.