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Grilled Caramelized Onion Burgers

Grilled Caramelized Onion Burgers

Caramelized onions accent pepper and mustard-seasoned hamburgers in this outdoor grilling recipe.

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45 min
Prep Time
55 min
Total Time


Caramelized Onion

1 tablespoon Land O Lakes® Butter

2 large (4 cups) yellow onions, sliced

1 teaspoon finely chopped fresh thyme leaves  

1 teaspoon white wine vinegar

1/4 teaspoon coarse ground pepper

1/8 teaspoon salt


1 1/2 pounds lean ground beef

2 tablespoons stone-ground mustard

1/4 teaspoon salt

2 teaspoons coarse ground pepper


4 onion hamburger buns

How to make

  1. STEP 1

    Melt butter in 12-inch skillet until sizzling; add onions. Cook over medium heat, stirring occasionally, 35-40 minutes until onions are tender and deep golden brown.

  2. STEP 2

    Stir in thyme, vinegar, 1/4 teaspoon pepper and 1/8 teaspoon salt. Continue cooking, stirring occasionally, 5 minutes or until onions are caramelized.

  3. STEP 3

    Heat gas grill on medium or charcoal grill until coals are ash white.

  4. STEP 4

    Combine ground beef, mustard and salt in bowl; mix lightly. Shape into 4 (3/4-inch thick) patties. Sprinkle both sides of patties with pepper.

  5. STEP 5

    Place patties onto grill. Grill, turning once, 10-12 minutes or until internal temperature reaches at least 160°F or until desired doneness.

  6. STEP 6

    Grill hamburger buns until toasted. Fill buns with hamburgers; top each with 1/4 cup onion mixture.

Tip #1

Broiling Directions: Prepare onions and patties as directed above. Heat broiler. Place patties onto broiler pan. Broil, turning once, 12-15 minutes or until internal temperature reaches at least 160°F or until desired doneness.

Nutrition (1 serving)

490 Calories
25 Fat (g)
110 Cholesterol (mg)
770 Sodium (mg)
31 Carbohydrates (g)
3 Dietary Fiber
35 Protein (g)
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