Grilled Caramelized Onion Burgers

Grilled Caramelized Onion Burgers

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

45 min. prep time
4 servings
252 Ratings


Caramelized Onion

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


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

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

Meanwhile, heat gas grill on medium or charcoal grill until coals are ash white. Combine ground beef, mustard and salt in large bowl; mix lightly. Shape into 4 (3/4-inch thick) patties. Sprinkle both sides of patties with pepper.

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

Meanwhile, grill hamburger buns until toasted (3 to 5 minutes). Fill buns with hamburgers; top each with 1/4 cup onion mixture.

*Substitute 1/4 teaspoon dried thyme leaves.

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

Nutrition Facts (1 serving)

Calories: 490

Fat: 25g

Cholesterol: 110mg

Sodium: 770mg

Carbohydrates: 31g

Dietary Fiber: 3g

Protein: 35g

Recipe #13057©2003Land O'Lakes, Inc.

Recipe Comments & Reviews

This recipe is so simple to do, and the taste is wonderful. The stone-ground mustard works very well, and really compliments the flavors of the carmelized onions. I don't have a grill, so I just did them in a saute` pan. I did add a slice of pepperjack cheese to mine, and I think I now have a replacement for my favorite pattymelt! I made them smaller because of my diet restrictions, and they reheat very well, too. This one is a real winner and will go into my personal cookbook.
came out great and the onions give the burgers an incredible flavor

Comment On This Recipe

Please correct the item(s) in red below:
4 Please select a rating

Email address will not be published

Please note, all submissions are screened for content deemed appropriate by Land O'Lakes. Comments are published within 3 business days.
Thank you, your comment has been submitted for approval


Your friend thought you might be interested in Grilled Caramelized Onion Burgers

Latest Blog

Brunch Made Easy: Make Ahead Poached Eggs
March 24, 2015 by Amber

Eggs Benedict, like this Cheesy Eggs Benedict, is the quintessential brunch dish, but it sure can be challenging to serve to a crowd with so many last-minute elements – toasting English muffins, poaching eggs and making hollandaise sauce. Of course, it can be made easier by toasting all the muffins on a sheet in the oven, and by poaching your eggs the day before your brunch. More ...

The Simple Rewards® Club is your personal online resource for exclusive offers and information. It’s also our way of saying “thank you” for trusting Land O’Lakes and inviting us into your home. Membership is free, so sign up today.

FREE Sign Up Includes:
  • Our Measuring Cup® Newsletter Preview »
  • Money-Saving and Exclusive Offers
  • Online Recipe Box

Already a Member? Sign In.


YES. Send me the Measuring Cup® Newsletter.
Cancel and Go Back

Forgot Your Password?

Please correct the items(s) in red below

    We'll email instructions to the address you used to register.

    Reset My Password Cancel and Go Back

    Confirmation Email Sent

    We've sent a confirmation email to the address associated with your account. Check your email and follow the link within 3 hours in order to complete the password reset process.


    Welcome Back!

    If you are already a member, please sign in.

    Not a Simple Rewards Member? Join Now. Forgot Your Password?

    Check Your Email

    Look for an email soon with instructions to reset your password.

    If you did not receive the email, please check your email junk folder (just in case) or contact us.

    Hi, I'm Becky. I'm eager to share my best ideas and favorite recipes from my 20+ years in the Land O'Lakes Test Kitchen. I'm also excited to help with any questions you have about cooking and baking with Land O Lakes® products. Some of the questions and answers will be published in our newsletter, The Measuring Cup®. Please use the short form below to ask your questions, or share your tip or memory.

    Please correct the item(s) in red below

    *These fields are required


    Your question has been submitted.

    Close Window