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Fillet Steak Sandwich

Looking for the way to your man’s heart? This steak sandwich recipe should do the trick.


  • 4 slices of sourdough

  • 2 x 150g fillet steaks

  • 1 tsp. Dijon mustard

  • 1 egg yolk

  • 1 tsp. white wine vinegar

  • ½ cup of vegetable oil

  • ¼ cup olive oil

  • 1 tsp. lemon juice

  • ½ clove of garlic (finely grated)

  • 1 tsp. freshly grated horseradish (bottled is fine too)

  • Handful of picked watercress

  • 1 ripe tomato, sliced

  • 4 cornichon (small pickles), sliced

  • ¼ cup tomato relish

  • 6 slices gruyere cheese

  • Salt and pepper

  • Caramelised onions (optional)

  • 3 tbs. olive oil

  • 1 tsp. butter

  • 1 onion

  • 1 heaped tsp. brown sugar

  • 1 sprig of thyme

  • 1 bay leaf

  • Salt/pepper


  • 1.

    In a pot add onions to oil and butter, brown onion, thyme and bay leaf. Cook on low heat for 10 minutes until soft.

  • 2.

    To make the mayonnaise: Whisk egg yolk with mustard until smooth. While whisking, add oil in a thin, steady stream until thickened. Add 1 tbsp of the vinegar and whisk till combined. Add a little lemon juice, horseradish and garlic. Season to taste.

  • 3.

    In a hot pan sear the steaks on each side for no more than 1 ½ minutes on each side. Once cooked put aside and let rest. On a griddle pan grill the sour dough briefly to toast it.

  • 4.

    To assemble place a layer of the mayonnaise and tomato relish on each side of the sourdough. Add the steak, cornichon, onions, tomato, cheese and watercress. Sandwich together and dig in!

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