"At BLT Burger in Las Vegas, chef Laurent Tourondel brushes burgers with butter while they're on the grill. The natural sugars caramelize, making the meat extra-delicious...."
INGREDIENTS
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1/2 cup mayonnaise
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1/3 cup ketchup
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1 tablespoon red wine vinegar
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1 tablespoon grated onion
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1 tablespoon chopped parsley
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1 tablespoon chopped tarragon
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1 teaspoon Worcestershire sauce
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12 ounces thickly sliced bacon
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1 1/3 pounds ground beef chuck
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1 1/3 pounds ground beef sirloin
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1 teaspoon kosher salt
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1/2 teaspoon freshly ground pepper
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2 tablespoons unsalted butter, melted
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3 ounces sharp cheddar cheese, cut into 6 slices
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6 hamburger buns, split and toasted
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6 iceberg lettuce leaves
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6 slices of tomato
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6 slices of red onion