Burgundy-Reduced Mushrooms, Caramelized Onions and Swiss Burger

This burgundy reduced-mushrooms, caramelized onions and Swiss burger is one for the record books.   Serve on a lightly grilled onion bun and you won’t believe the flavor sensation of this burgers!   Wow, oh wow!

mushroom Swiss burger

Burgundy-Reduced Mushrooms, Caramelized Onions and Swiss Burger

This burgundy-reduced mushrooms, caramelized onions and Swiss Burger on an onion roll is so good. Use 85% lean sirloin for the juicy perfect burger. Incredible!
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Course: Hamburger
Cuisine: American
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 4


  • 2 lbs of 85% ground sirloin
  • 1/2 teaspoon of smoked paprika
  • 1 teaspoon of Worcestershire sauce plus a couple more splashes
  • salt and pepper to taste
  • 1/2 lb mushrooms combo of button, shiitake, bella - sliced
  • 4 tablespoons of unsalted butter
  • 1 teaspoon of fresh thyme chopped
  • 3/4 cup of burgundy red wine
  • 1/4 of beef stock
  • 1/2 teaspoon of Kosher salt
  • 1/8 teaspoon of black pepper
  • 1 large yellow onion sliced
  • Swiss baby cheese slices (about 8)
  • 8 onion rolls split
  • Butter for the buns


  • In a medium bowl, gently mix the ground beef, paprika, Worcestershire sauce, a few dashes of salt and pepper.
  • Form the beef until about 4 patties...indent the center of each.
  • In a large Dutch oven, or a skillet, heat 1 tablespoon over medium heat.
  • Once melted add the mushrooms, and cover with the melted butter.
  • Add the thyme. Stir.
  • Add the wine and the stock and simmer until reduced to about 1/4 cup.
  • Add the salt and black pepper, to taste.
  • In another skillet, heat the remaining 3 tablespoons of butter.
  • Add the onions and cook until caramelized...about 15 minutes.
  • Heat the grill over medium high heat.
  • Add the burgers and add a couple splashes of Worstershire.
  • Salt and pepper.
  • Flip the burgers. Cook for about 6 minutes per side, for medium.
  • Add the Swiss cheese, until just melted. Removed from the grill.
  • Butter the split buns, and add to the grill. Cook until lightly browned (about 2 minutes).
  • Assemble the burgers. Place burgers on the buns, and the add the mushroom sauce and then the caramelized onions on top.
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