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Red Wine Caramelized Onion Burgers with Portabellos and Garlic Herb Cheese

These Red Wine Caramelized Onion Burgers with Portabellos and Garlic Herb Cheese are an incredibly delicious restaurant-quality burger you can make at home! The caramelized onions are deglazed with red wine and topped on the burger with sautéed portobello mushrooms, and the toasted buns are spread with creamy garlic herb cheese. They're truly mouthwatering!

Course Burger, Main
Cuisine American
Keyword red wine caramelized onion burgers
Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes
Servings 4
Author Molly | Spices in My DNA

Ingredients

For the red wine onions

  • 3 tablespoons unsalted butter
  • 1 medium sweet onion, thinly sliced
  • 1/4 teaspoon salt
  • 1/4 teaspoon pepper
  • 1/2 cup dry red wine

For the mushrooms

  • 1 tablespoon olive oil
  • 3 portobello mushroom caps, sliced
  • salt and pepper to taste

For the burgers

  • 1.3 pounds lean ground beef
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 2 teaspoons Worcestershire sauce
  • 1/2 teaspoon salt
  • 1/2 teaspoon pepper
  • 2 tablespoons unsalted butter
  • 5.2 ounces garlic herb cheese*
  • baby kale, or greens of your choice
  • buns of your choice, toasted

Instructions

red wine caramelized onions

  1. Heat a large nonstick or cast iron skillet over medium heat. Add the butter. Once melted, add the onions, salt, and pepper and sauté for 15 minutes, stirring frequently, until they become jammy and golden brown. Add the wine, increase heat to high, and sauté for an additional 5 minutes, stirring frequently, until all liquid has been absorbed.

mushrooms

  1. Heat a large nonstick or cast iron skillet over medium-high heat. Add the olive oil. Once hot, add the mushrooms and sauté for 8-10 minutes or until golden brown on the edges. Season to taste with salt and pepper.

burgers

  1. Add ground beef to a medium bowl and add the garlic powder, onion powder, Worcestershire, salt, and pepper. Mix with your hands to thoroughly combine, and form into 4 equal patties. Heat butter in a large nonstick skillet over medium to medium-high heat. Fry the burgers for about 4 minutes per side, or until desired doneness is reached.

  2. To assemble, spread both sides of the bun with a generous amount of garlic herb cheese, followed by a handful of baby kale, the burger patty, and spoonful of caramelized onions, and a handful of mushrooms. Top with the other bun half and enjoy immediately!

Recipe Notes

*I use Boursin brand garlic herb cheese - it's my favorite! But there are a lot of versions out there. Any will work!