2 tbsp olive oil
2 red onions, thinly sliced
50g light brown soft sugar
50ml red wine vinegar
2 tbsp mayonnaise
1 tbsp Wholegrain Mustard MAY-OH
2 half ciabattas or bread roll of your choice
2 x 1cm thick sirloin steaks, trimmed (about 350g, from the meat counter)
Rocket or mixed leaves
1. Preheat the oven to 200°C, gas mark 6. Heat 1 tbsp oil in a large frying pan and fry the onions for 3-4 minutes, stir in the sugar and vinegar and cook for 8-10 minutes until caramelised.
2. Bake the ciabattas for 5-6 minutes and then slice in half lengthways. Brush the steaks in oil and season, then griddle for 1 minute on each side.
3. Spread the ciabatta bases with May-Oh Wholegrain Mustard Mayo, place on the steak and top with rocket or mixed leaves.