Balsamic-glazed steak with crushed potatoes and pickled onion

Method

• Step 1
  Combine onion, vinegar, mustard and sugar in a bowl. Set aside for 30 minutes.
• Step 2
  Meanwhile, place potatoes in a large saucepan. Cover with cold water. Bring to the boil over high heat. Reduce heat to medium-low. Simmer for 10 to 12 minutes or until just tender. Drain well. Stand for 5 minutes. Transfer to a plate. Using the back of a fork, press on each potato to flatten slightly.
• Step 3
  Meanwhile, combine glaze and thyme in a shallow glass or ceramic dish. Season with salt and pepper. Set aside. Heat a large non-stick frying pan over medium-high heat. Cook steaks for 3 to 4 minutes each side, for medium, or until cooked to your liking. Transfer steak to glaze mixture in dish. Turn to coat. Cover loosely with foil. Set aside for 5 minutes to rest.
• Step 4
  Add butter and potato to pan over high heat. Cook for 5 minutes, turning potato carefully, or until golden and crisp. Serve steak with potato, drained onion mixture, steamed beans and carrots.