"My husband often orders patty melts at restaurants, so I started fixing them at home. I added horseradish to give them more zip, and now he loves them my way. —Leah Zimmerman, Ephrata, Pennsylvania..."
INGREDIENTS
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10 thin slices sweet onion
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2 tablespoons butter, softened, divided
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1/2 pound lean ground beef (90% lean)
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1/4 teaspoon salt
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1/4 teaspoon pepper
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4 slices rye bread
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2 tablespoons Thousand Island salad dressing
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2 teaspoons prepared horseradish
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2 slices process American cheese or Swiss cheese