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Umami Mushroom Swiss Burger

Close-up of a juicy Mushroom Swiss burger featuring melted Swiss cheese and a generous topping of sautéed mushrooms and onions.

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Make an umami-packed alternative to the standard burger using sautéed mushrooms and melty Swiss cheese for a gourmet weekend BBQ experience.

Ingredients

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  • 1.5 lbs ground beef (80/20 recommended)
  • 1 tbsp Worcestershire sauce
  • 1 tsp garlic powder
  • 0.5 tsp salt
  • 0.25 tsp black pepper
  • 1 tbsp olive oil
  • 8 oz cremini mushrooms, sliced
  • 1 small yellow onion, thinly sliced
  • 4 slices Swiss cheese
  • 4 brioche buns
  • Butter, softened, for toasting

Instructions

  1. In a bowl, combine the ground beef, Worcestershire sauce, garlic powder, salt, and pepper. Mix gently until just combined; do not overwork the meat. Form the mixture into four equal patties, making a small indentation in the center of each.
  2. Heat the olive oil in a large skillet over medium heat. Add the sliced mushrooms and onions. Sauté for 8 to 10 minutes, stirring occasionally, until the mushrooms are deeply browned and the onions are soft. Remove the vegetables from the skillet and set aside.
  3. Wipe out the skillet if necessary. Place the patties in the skillet over medium-high heat. Cook for 3 to 4 minutes per side for medium doneness.
  4. During the last minute of cooking, place one slice of Swiss cheese on top of each patty. Cover the skillet briefly to help the cheese melt.
  5. While the cheese melts, lightly butter the cut sides of the brioche buns and toast them in a separate pan or under the broiler until golden brown.
  6. Assemble the burgers: Place a cheese-topped patty on the bottom half of each toasted bun. Top the cheese with a generous portion of the sautéed mushroom and onion mixture. Place the top bun on the burger.

Notes

  • For a richer flavor, use beef broth instead of water when sautéing the mushrooms to help them brown.
  • If you prefer grilling, cook the patties over medium heat until they reach your desired doneness, then top with cheese and cover briefly until melted.

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