The Favourite Steak Sandwich

Enjoy the summary outdoors with this picnic hit

Preparation Time

10 minutes

Cooking Time

15 minutes




  • 400g Sirloin Steak
  • 10ml Olive oil
  • 5 ml Worcester sauce
  • 5ml Coarse Coriander
  • 2.5ml Salt
  • 2.5ml Pepper
  • 1 Onion, sliced into Petals
  • 12.5ml Olive oil
  • 1.25ml Salt
  • 10ml Brown Sugar
  • 37.5 Balsamic Vinegar
  • 15ml Wholegrain Mustard
  • 45ml Mayonnaise
  • 1 Sourdough or Ciabatta Bread Loaf
  • 1 Tomato (sliced into ±5mm rounds)
  • 4 Emmental Cheese (slices)
  • 2 Cups of Rocket


Rub the sirloin steak with olive oil and Worcester sauce. Sprinkle with coarse coriander and season generously with salt & pepper. Heat a heavy pan on the hob. Once the pan is hot add a drizzle of olive oil. Place the marinated steaks on the hot pan and sear on both side (cook for ± 5 minutes on each side or to preferred degree of doneness). Season with salt & pepper to taste. Leave to rest for 15 minutes and slice into thin strips.

Heat the olive oil in a saucepan over medium heat. Add the sliced onion petals and season with salt. Sauté the onions until tender. Add the brown sugar and balsamic vinegar. Continue to cook for another 5 minutes until the onions are glazed and the sauce thick.

In a small bowl. Mix the mayonnaise and wholegrain mustard together.

Slice 8 slices of bread. Spread mustard mayonnaise on the inside of the top & bottom slice. Layer the sirloin steak strips, tomato, cheese and rocket on the bottom half. Top with balsamic caramelised onions.

Back to Recipes