Classic steak sandwich with mustard mayo


2 tbsp olive oil
2 red onions, thinly sliced
50g light brown soft sugar
50ml red wine vinegar
2 tbsp mayonnaise
1 tsp Dijon mustard
1 tsp wholegrain mustard
2 half ciabattas
2 x 1cm thick sirloin steaks, trimmed (about 350g, from the meat counter)
½ x 100g bag sweet salad


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. Meanwhile, mix the mayonnaise and both mustards and set aside.

2. Bake the ciabattas for 5-6 minutes and then slice in half lengthways. Brush with oil and griddle for 1-2 minutes until golden. Brush the steaks in oil and season, then griddle for 1 minute on each side.

3. Spread the ciabatta bases with mustard mayonnaise and top with salad. Place the steak on top and spoon over some of the onion marmalade. Serve with crisps, chips or salad, with extra onion marmalade. 

Classic steak sandwich with mustard mayo
  • Preparation time: 15 minutes
  • Cooking time: 10 minutes to 15 minutes
  • Total time: 25 minutes to 30 minutes 30 minutes

Serves: 2

Nutritional Info

Typical values per serving:

Energy 3,856kJ
Fat 32.9g
Saturated Fat 7.1g
Carbohydrate 105.8g
Sugars 34.9g
Protein 49.4g
Salt 2.5g
Fibre 5.7g

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This recipe was first published in Thu May 12 13:00:00 BST 2016.