Past Recipes
Caramelized Onion Burgers

Caramelized Onion Burgers with Gruyère and Smoky Tomato Jam

See upcoming menus

Get weekly recipes and ingredients delivered.

Recipe Details


Chef Liz knows her summer will be filled with burgers, so why not take the classic and kick it up a few notches? Here, she caramelizes onions until sweet and tender, and transforms tomatoes into a smoky, tangy jam. The usual sliced cheese is upgraded to shredded Gruyère that’s melted over toasted buns before the burgers are assembled. If you need us, we’ll be crashing Chef Liz’s next cookout.


Quick facts

Serving size
Prep & cook time
Cooking Skill
By Chef Liz

By Chef Liz

Nutritional info

  • Calories 920
  • Protein 48g
  • Total Carb 45g
  • Total Fat 62g

Given the cook-at-home nature of Plated and natural variation in ingredients, nutritional information is approximated. See details.

Ingredients & Equipment

What we send

  • red onion
    red onion
  • garlic
    1 clove
  • grape tomatoes
    1/2 pint
    grape tomatoes
  • smoked paprika
    1/4 teaspoon
    smoked paprika
  • vegetarian Worcestershire
    1 tablespoon
    vegetarian Worcestershire
  • ground beef
    12 ounces
    ground beef
  • hamburger buns
    hamburger buns
  • Dijon mustard
    2 packets
    Dijon mustard
  • shredded Gruyère cheese
    2 ounces
    shredded Gruyère cheese
  • unsalted butter
    2 packets
    unsalted butter
  • white wine vinegar
    1 tablespoon
    white wine vinegar
  • mixed lettuces
    3 ounces
    mixed lettuces

What You’ll Need

  • olive oil
  • kosher salt
  • eggs
  • black pepper
  • 12" large pan
  • baking sheet

Cooking Steps

  1. Make tomato jam

    Make tomato jam

    Preheat oven to 425°F. Rinse all produce. Peel onion, halve, and thinly slice. Mince garlic. Heat 1 tablespoon olive oil in a large pan over medium-high heat. When oil is shimmering, add whole grape tomatoes; cook, stirring, until beginning to burst, 4-5 minutes. Using a spoon, mash tomatoes to release their juices. Add smoked paprika and half of garlic; cook, stirring to combine, 30 seconds more. Remove pan from heat.

  2. Form burgers

    Form burgers

    Transfer tomato jam to a small bowl and season with ¼ teaspoon salt and pepper. Wipe pan clean for the next step. In a medium bowl, combine Worcestershire, remaining garlic, ½ teaspoon salt, and pepper as desired. Pat beef dry with paper towel and add to bowl. Using your hands, mix well, then form into 2 equal patties, about 1 inch thick. Using your thumb, create a dimple on top of each.

  3. Cook burgers

    Cook burgers

    Return pan from tomato jam to medium-high heat with 1 teaspoon olive oil. When oil is shimmering, add burgers and sear, without flipping, until browned on bottom, about 4 minutes. Flip burgers and continue searing until browned and medium rare, 3-4 minutes more. Transfer to cutting board to rest. Wipe pan clean and reserve, off heat, for Step 5.

  4. Toast buns

    Toast buns

    While burgers cook, slice buns open horizontally, if they arrived whole; arrange cut-side up on a baking sheet. Spread mustard evenly over cut sides of buns and top with Gruyère. Bake until cheese is melted and buns are toasted, 5-6 minutes.

  5. Caramelize onion and make dressing

    Caramelize onion and make dressing

    While buns toast, return pan from burgers to medium-high heat with 2 teaspoons olive oil. When oil is shimmering, add onion and cook, stirring, until light brown and softened, 5-6 minutes. Stir in butter and 2 tablespoons water to combine. Remove pan from heat. Meanwhile, in a separate medium bowl, whisk together white wine vinegar, half of tomato jam, 1 tablespoon olive oil, ¼ teaspoon salt, and pepper.

  6. Plate burgers

    Plate burgers

    Pat mixed lettuces dry with paper towel, add to bowl with dressing, and toss to coat. Divide bun bottoms between serving plates. Top with burgers, then caramelized onion, then smoky tomato jam. Finish with bun tops. Serve with salad. Dig in!

What is Plated?

  • 1. Pick chef-designed recipes.

    1. Pick chef-designed recipes.

    Mix and match 20 delicious recipes (plus dessert!) each week in any combination.

  • 2. Get your customized box.

    2. Get your customized box.

    Your refrigerated pre-portioned ingredients and recipe cards will be delivered to your door.

  • 3. Enjoy your perfect dinner.

    3. Enjoy your perfect dinner.

    Experience quality time—in the kitchen and at the table—with the people that matter most.