Steak and Caramelised Onion Sandwich

It's very quick to prepare this classic steak sandwich, dressed with fresh rocket leaves, buttery onions and a strong splash of Worcestershire sauce for extra flavor. Serve and tuck in with some chips!


  • butter 25g
  • onion 1 large, halved and sliced
  • Worcestershire sauce a good dash
  • thyme 1 tsp of leaves
  • sirloin steaks 2, fat trimmed
  • mayonnaise 1 tbsp
  • Dijon mustard 1 tbsp
  • small ciabattas 2, halved and toasted
  • rocket 2 handfuls
  • chips to serve


Melt the butter in a pan, then add the onions with a good pinch of salt. Cook for about 20-25 minutes until they’re completely soft and golden, and they fall apart when you squeeze them between your fingers. Add the Worcestershire sauce and thyme and cook for another 5 minutes.

Heat a frying pan until smoking hot. Oil the steaks, then season with sea salt and lots of black pepper. Sear for 2 minutes on each side, then rest under foil.

Mix the mayo and mustard and spread on the bottom half of the ciabatta. Top with the rocket, then slice the steak and add that. Spoon over the onions and add the other half of the ciabatta.

Check out a wide selection of breads on farmbox if you're looking for bread substitution.