Jul 13 2026
RestaurantsPortus 360Tartare De Filet Mignon Recipe

Tartare De Filet Mignon Recipe

Inspired by Portus 360
Time45m
Serves2

Beef filet mignon tartar, oignon jam, matchstick potatoes with truffle oil

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Ingredients

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Beef Tartare

Method

Preparation

  1. 1

    Making the Beef Tartare

    Finely chop the beef filet mignon and place it in a bowl. Add the egg yolk, Dijon mustard, chopped capers, Worcestershire sauce, salt, black pepper, and parsley. Mix gently to combine and adjust seasoning to taste.

  2. 2

    Making the Onion Jam

    In a pan over medium heat, add a little oil and the sliced onions. Cook until soft and translucent, about 10 minutes. Stir in the brown sugar and balsamic vinegar, and continue to cook until the onions are caramelized and jam-like, about 15 more minutes. Add a pinch of salt and set aside.

  3. 3

    Preparing Matchstick Potatoes

    Soak the matchstick potatoes in cold water for 30 minutes, then drain and dry. Heat oil in a deep fryer or large pot and fry the potatoes until golden and crispy. Drain on paper towels and season with salt and truffle oil while still hot.

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