Method

• 1.
  Heat the butter and oil in a large frypan over high heat. Add the onions and fry for 3-4 minutes until lightly browned, then push to one side of the pan.
• 2.
  Add steaks, season with salt and pepper and cook for 1-2 minutes on each side until browned, but still pink in centre.

• 3.
  Remove from heat and allow to rest for 1 minute.
• 4.
  Meanwhile, toast bread. Divide onion rings between two slices of toast, followed by the steak.
• 5.
  Top with rocket and tomato chutney, finish with remaining toast. Serve immediately.