"This is the kind of burger you will want to *crush,* y'all! Two smashed patties, caramelized onions, American cheese, and a savory burger sauce. So good!..."
INGREDIENTS
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3 large, sweet onions
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2 Tablespoons olive oil
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kosher salt and freshly ground black pepper, as needed
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12 slices bacon
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4 brioche buns, split
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1/2 cup mayonnaise
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2 Tablespoons Worcestershire sauce
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several grindings black pepper
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8 slices American cheese
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1 pound ground chuck