Ingredients

How to make it

  • For onions:Prepare barbecue (medium-high heat): Arrange onion rounds on baking sheet. Brush with oil; sprinkle with 3/4 teaspoon coarse salt and pepper. Transfer onion rounds (still intact) to grill rack; close cover. Cook until grill marks appear, about 4 minutes per side. Reduce heat or move onions to cooler part of grill. Close cover; cook until onions are tender, about 10 minutes. Transfer to medium bowl. Toss with vinegar. DO AHEAD: Can be made 3 days ahead. Cover; chill.
  • For chipotle ketchup: Mix ketchup, chiles, adobo sauce, and 2 teaspoons vinegar in small bowl. Season with salt and more vinegar, if desired. do a h e a d Can be made 3 days ahead. Cover and chill.
  • For burgers: Shape beef into six 1/2-inch thick patties. Sprinkle patties on both sides with coarse salt and pepper. Prepare barbecue (medium-high heat). Place burgers on grill. Close cover; cook burgers until bottoms start to darken and juices rise to surface, about 3 minutes. Turn burgers; cook to desired doneness, about 3 minutes longer for medium-rare. Top with onions and cheese. Close cover; cook until cheese melts. Place muffin bottoms on plates; spread with ketchup. Top with burgers, tomatoes, if desired, spinach, and muffin tops. Serve, passing remaining ketchup separately.
Chiptole Chiles in Adobo Sauce   Close
Sliced Onions   Close
Making Chiptole Ketchup   Close
Burgers Ready For the Grill   Close
Lettuce and Tomatoes   Close
Sharp Cheddar Cheese   Close

Reviews & Comments 5

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    " It was excellent "
    bakermanrooster ate it and said...
    this one sounds great I like High 5s thanks for this posting!!!!!
    Bakermanrooster--Richard
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    " It was excellent "
    jimrug1 ate it and said...
    My mouth is watering. This is my kind of burger!! Great recipe.... Jim
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  • krumkake 15 years ago
    We love a thick slice of grilled onion on our burgers...so good! But you have taken it up a few levels with the balsamic (another favorite of ours...why didn't I already think to do this?!?), and the chipotle ketchup - love a new way to flavor a burger...thanks, my dear - you are the best!!
    PS - and I agree 100 with "no squishy, squishy with the spatula" - you are too funny (but so right!).
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    " It was excellent "
    bluewaterandsand ate it and said...
    The pictures look fantastic!
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    " It was excellent "
    michellem ate it and said...
    Look great to me. It's so nice to see a recipe from you! Thank you..Michelle
    Was this review helpful? Yes Flag

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