Jul 13 2026
RestaurantsPetite BoucherieWagyu Burger Recipe

Wagyu Burger Recipe

Inspired by Petite Boucherie
Time1h
Serves2

Wagyu blend, truffle dijonnaise, caramelized onions, Gruyère, pommes frites

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Ingredients

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Burger Ingredients

Truffle Dijonnaise

Caramelized Onions

Pommes Frites

Method

Burger Preparation

  1. 1

    Make the Patties

    In a mixing bowl, combine the Wagyu beef with salt and black pepper. Form into 2 patties.

  2. 2

    Cook the Patties

    Preheat a grill or skillet over medium-high heat. Cook the patties for about 4-5 minutes on each side for medium, adding Gruyère cheese on top in the last minute of cooking to melt.

Truffle Dijonnaise

  1. 3

    Mix the Sauce

    In a small bowl, whisk together mayonnaise, Dijon mustard, and truffle oil until well combined. Set aside.

Caramelized Onions

  1. 4

    Caramelize the Onions

    Slice the onion thinly. Heat olive oil in a skillet over medium heat, add the onions, and cook slowly for about 15-20 minutes until golden brown and caramelized.

Pommes Frites

  1. 5

    Prepare the Fries

    Peel and cut the potatoes into thin strips. Rinse and dry them thoroughly. Heat oil in a deep fryer or large pot to 350°F (175°C). Fry the potatoes in batches until golden and crispy, about 3-5 minutes. Drain on paper towels and season with salt.

Assembly

  1. 6

    Assemble the Burger

    Spread the truffle dijonnaise on the bottom bun, place the cooked Wagyu patty with melted Gruyère on top, followed by caramelized onions. Top with the other half of the bun and serve with pommes frites.

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