Jul 14 2026
RestaurantsMercy KitchenS&m Burger Recipe

S&m Burger Recipe

Inspired by Mercy Kitchen
Time45m
Serves2

Ground chuck burger, swiss, french onion aioli, smothered truffled mushrooms on a brioche bun

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Ingredients

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Burger Patty

Toppings

French Onion Aioli

Truffled Mushrooms

Method

Burger Patty

  1. 1

    Prepare the Patty

    In a mixing bowl, combine the ground chuck, salt, black pepper, and garlic powder. Mix gently until just combined to avoid overworking the meat.

  2. 2

    Form the Patties

    Divide the mixture into two equal portions and shape each portion into a patty, about ¾ inch thick. Make a small indentation in the center of each patty to prevent puffing during cooking.

  3. 3

    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 doneness. In the last minute of cooking, place a slice of Swiss cheese on each patty to melt.

French Onion Aioli

  1. 4

    Make the Aioli

    In a medium bowl, combine the mayonnaise, caramelized onions, minced garlic, and lemon juice. Mix well until smooth.

  2. 5

    Season the Aioli

    Add salt and black pepper to taste, adjusting as needed. Set aside until ready to use.

Truffled Mushrooms

  1. 6

    Cook the Mushrooms

    In a skillet, heat the olive oil and truffle oil over medium heat. Add the sliced mushrooms and cook until they are browned and tender, about 5-7 minutes.

  2. 7

    Season the Mushrooms

    Season with salt and black pepper to taste. Remove from heat and set aside.

Assembly

  1. 8

    Toast the Buns

    Lightly toast the brioche buns on the grill or in the oven until golden brown.

  2. 9

    Assemble the Burger

    Spread a generous amount of French onion aioli on the bottom half of each toasted bun. Place the cooked patty with melted Swiss cheese on top, followed by a heap of truffled mushrooms. Top with the other half of the bun.

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