"When you're craving the ultimate comfort food, nothing satisfies quite like an indulgent patty melt sandwich. Loaded with a juicy beef patty, sweet caramelized onions, gooey melted cheese, and tangy secret sauce, this diner classic..."
INGREDIENTS
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1/4 cup mayonnaise
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2 tablespoons ketchup
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1 tablespoon Dijon mustard
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1 teaspoon pickle juice
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1/4 teaspoon paprika
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1/4 teaspoon garlic powder
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2 tablespoons olive oil
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2 large onions (thinly sliced)
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12 ounces 85/15 lean ground beef
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1/2 teaspoon salt
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1/2 teaspoon black pepper
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1 teaspoon Worcestershire sauce
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8 slices rye bread
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3 tablespoons unsalted butter (softened)
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4 Swiss cheese slices
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4 cheddar cheese slices