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Caramelized Onion Burgers Recipe
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5 from 2 votes

Caramelized Onion Burger

This Caramelized Onion Burger with Balsamic Mayo drips with flavor! A flavorful bun is loaded with a juicy patty, melted cheese, sticky caramelized onions, and a tangy savory sauce. It is absolute perfection!
Prep Time3 mins
Cook Time8 mins
resting time5 mins
Total Time11 mins
Course: Sandwich
Cuisine: American
Servings: 3
Calories: 696kcal


  • 1 pound 80/20 ground beef (ground chuck is perfect)
  • 2 tablespoon Cooking oil
  • Salt and Pepper
  • 3 slices Provolone Cheese
  • 6 tablespoons Caramelized Onions
  • 3 Hamburger Buns

Balsamic Mayo

  • ¼ cup Mayo
  • ¾ teaspoon Balsamic Vinegar
  • Fresh Ground Pepper to taste


Balsamic Mayo

  • Combine all ingredients and set aside.

Caramelized Onion Burgers

  • Divide the ground beef into 3 equal sections and gently form into rounds, then press firmly on them with a flat object, like the bottom of a plate, to press into patties. Season generously with salt and pepper.
  • Heat skillet on medium-high and add cooking oil. Once oil is shimmering add burger patties, cooking in batches if needed. Cook until brown crust forms on the bottom and the top is beginning to turn a deep red. Flip patties, top with cheese, and cook for a few minutes longer, until the cheese melts.
  • Lightly toast the buns, then spread Balsamic Mayo on the inside of the hamburger buns. Add burger patty to the buns and top with ~2 tablespoons caramelized onions per burger, or to taste.
  • After burger patties have rested for 5 minutes to allow juices to redistribute, serve and enjoy!


IF YOU ENJOYED THIS RECIPE try it grilled! Check out my How to Grill Burgers tutorial


Calories: 696kcal | Carbohydrates: 24g | Protein: 37g | Fat: 48g | Saturated Fat: 17g | Cholesterol: 126mg | Sodium: 562mg | Potassium: 545mg | Fiber: 1g | Sugar: 4g | Vitamin A: 245IU | Vitamin C: 2.8mg | Calcium: 320mg | Iron: 4.6mg