INGREDIENTS
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1 1/2 pounds ground beef, 80 percent lean
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Salt and freshly ground black pepper
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4 slices American cheese
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1/4 cup ketchup
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1/4 cup sour cream
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1 tablespoon mayonnaise
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4 hamburger buns
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1/4 head iceberg lettuce, shredded
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2 dill pickles, sliced