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!

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!
Course Hamburger
Cuisine American
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings 4
Author Kris Longwell


  • 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


  1. In a medium bowl, gently mix the ground beef, paprika, Worcestershire sauce, a few dashes of salt and pepper.
  2. Form the beef until about 4 patties...indent the center of each.
  3. In a large Dutch oven, or a skillet, heat 1 tablespoon over medium heat.
  4. Once melted add the mushrooms, and cover with the melted butter.
  5. Add the thyme. Stir.
  6. Add the wine and the stock and simmer until reduced to about 1/4 cup.
  7. Add the salt and black pepper, to taste.
  8. In another skillet, heat the remaining 3 tablespoons of butter.
  9. Add the onions and cook until caramelized...about 15 minutes.
  10. Heat the grill over medium high heat.
  11. Add the burgers and add a couple splashes of Worstershire.
  12. Salt and pepper.
  13. Flip the burgers. Cook for about 6 minutes per side, for medium.
  14. Add the Swiss cheese, until just melted. Removed from the grill.
  15. Butter the split buns, and add to the grill. Cook until lightly browned (about 2 minutes).
  16. 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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