"Patty Melts are juicy smashed burgers layered with melty cheese and caramelized onions, all grilled up in crisp sourdough bread ~ delicious!..."
INGREDIENTS
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2 yellow onions, peeled, halved and thinly sliced
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1 Tbsp olive oil
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1 tsp` sugar
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1 tsp salt
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dry sherry for deglazing the pan (you can use water instead.)
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1 lb 80/20 ground beef (you can use up to 1.25 lb)
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1 tsp salt
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1/2 tsp black pepper
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1 tsp onion powder
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1 tsp garlic powder
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1 tsp deydrated minced onion (optional but delicious)
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4 Tbsp butter, at room temperature
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4 Tbsp mayonnaise
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8 slices of sourdough, rye, or white bread
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8 thin slices cheese Swiss cheese (use extra to taste or to fit your bread)