Jul 14 2026
Restaurants›Avert Brasserie›Avert Burger Recipe

Avert Burger Recipe

Inspired by Avert Brasserie
Time1h
Serves4

caramelized onion, gruyere, truffle aioli

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Ingredients

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Burger Ingredients

Caramelized Onion Ingredients

Truffle Aioli Ingredients

Gruyere Cheese

Method

Burger Preparation

  1. 1

    Prepare the Burger Patties

    In a large bowl, combine the ground beef, salt, and black pepper. Mix gently until evenly combined. Divide the mixture into four equal portions and shape each portion into a patty.

  2. 2

    Cook the Burger Patties

    Preheat a grill or skillet over medium-high heat. Cook the patties for about 4-5 minutes on each side for medium doneness. During the last minute of cooking, place a slice of Gruyere cheese on top of each patty to melt.

Caramelized Onion Preparation

  1. 3

    Slice the Onions

    Peel and thinly slice the onions.

  2. 4

    Caramelize the Onions

    In a skillet, heat the olive oil over medium heat. Add the sliced onions and salt, stirring occasionally. Cook for about 20-25 minutes, or until the onions are golden brown and caramelized.

Truffle Aioli Preparation

  1. 5

    Make the Aioli

    In a mixing bowl, combine the mayonnaise, truffle oil, lemon juice, and minced garlic. Stir until well mixed. Season with salt to taste.

Assembly

  1. 6

    Assemble the Burger

    Toast the burger buns lightly. Spread a generous amount of truffle aioli on the bottom half of each bun. Place the cooked burger patty with melted Gruyere cheese on top, followed by a spoonful of caramelized onions. Top with the other half of the bun and serve immediately.

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