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Best Beefy Burgers with Roasted Onion & Peppercorn Mayo

Total Time

Prep: 20 min. Cook: 15 min.


4 servings

Remember those times when only a burger in all its smoky, juicy, jumbo-layered, lettuce pickle madness can hit the spot? Roasted red onions and mayo blended with crushed peppercorns make this the spot-on burger. —Melissa Jelinek, Menomonee Falls, Wisconsin
Best Beefy Burgers with Roasted Onion & Peppercorn Mayo Recipe photo by Taste of Home
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  • 1 small red onion, chopped
  • 1 tablespoon olive oil
  • 1-1/4 teaspoons salt, divided
  • 1/2 cup mayonnaise
  • 1/2 teaspoon whole peppercorns, crushed
  • 1-1/2 pounds ground beef
  • 4 kaiser rolls, split and toasted
  • Optional ingredients: tomato slices and lettuce leaves


  1. Place onion on a greased baking sheet. Drizzle with oil and sprinkle with 1/4 teaspoon salt; toss to coat. Bake at 400° for 8-12 minutes or until tender. Cool slightly. In a small bowl, combine the mayonnaise, crushed peppercorns and onion mixture; set aside.
  2. Sprinkle beef with remaining salt; gently mix. Shape into four patties. In a large skillet, cook patties over medium heat for 6-8 minutes on each side or until a thermometer reads 160° and juices run clear. Serve on rolls with mayonnaise mixture and, if desired, tomato and lettuce.

Nutrition Facts

1 burger with 2 tablespoons mayonnaise mixture (calculated without optional ingredients): 712 calories, 48g fat (11g saturated fat), 115mg cholesterol, 1292mg sodium, 32g carbohydrate (2g sugars, 2g fiber), 36g protein.

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