Caramelized Onion & Mushroom Burger

Caramelized onions and sauteed onions on top of juicy homemade patties with melted cheese on top, covered with our Heavenly Horseradish Sauce and topped with fluffy sesame seed buns – this is what this Caramelized Onion and Mushroom Burger Recipe is all about.

Ingredients:

  • 1 1/2 lb ground beef
  • 2 tablespoons Worcestershire Sauce
  • 2 cloves garlic grated
  • handful of parsley finely chopped
  • salt and pepper
  • 4 sesame seed buns
  • 4 slices of Swiss cheese
  • 1 tablespoon olive oil
  • 5 tablespoons butter
  • 1 onion thinly sliced
  • 1/2 cup beef broth
  • 1 tablespoon light brown sugar
  • 1 tablespoon balsamic vinegar
  • 2 cups mushrooms, sliced
  • Beano’s Heavenly Horseradish

Directions:

To make mushrooms:
  • In a large skillet over medium heat, heat 2 tablespoons of butter
  • Add mushrooms, saute of medium for about 10 minutes or until mushrooms are browned 
To make caramelized onions:
  • In a large skillet over medium heat, heat 3 tablespoons of butter and olive oil.
  • Add onions, saute on medium heat for about 15 minutes or until onions are caramelized. Stirring occasionally.
  • Add broth, brown sugar, and balsamic vinegar. Stir with a spoon until sugar dissolves.
  • Lower the heat to very low, keep warm until ready to serve.
To make homemade burger patties:
  • In a large mixing bowl combine ground beef, Worcestershire sauce, garlic, parsley salt, and pepper. Mix it all together with hands or a mixer.
  • Divide mixture into 4 equal portions and form them into patties. Make sure to make the center a little thinner than the edges for even grilling.
  • Grill on medium-high heat for about 5 minutes on each side. A few minutes before patties are done grilling add sliced cheese on top.
To make caramelized onion burger:
  • Place grilled patties over the bottom bun, add lots of caramelized onions and mushrooms, top with Beano’s Heavenly Horseradish, cover with top bun and enjoy!