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Patty Melts with Secret Sauce

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  • Author: Olivia
  • Prep Time: 15 minutes
  • Cook Time: 20 minutes
  • Total Time: 35 minutes
  • Yield: 2 sandwiches
  • Category: Main Dish
  • Method: Pan-Fried
  • Cuisine: American
  • Diet: Low Lactose

Description

Patty Melts with Secret Sauce are the ultimate comfort sandwich, combining juicy beef patties, caramelized onions, melty cheese, and a tangy homemade sauce between crispy grilled bread. It’s a hearty, diner-style classic that’s quick and packed with flavor.


Ingredients

  • 1/2 lb ground beef
  • Salt and pepper, to taste
  • 1/2 tsp garlic powder (optional)
  • 2 tbsp mayonnaise
  • 1 tbsp ketchup
  • 1 tsp Dijon mustard or yellow mustard
  • 1 tbsp pickle relish
  • 1/4 tsp garlic powder (for sauce)
  • 1/4 tsp paprika
  • 4 slices rye bread or sourdough
  • 2 tbsp butter (for toasting)
  • 1 medium yellow or white onion, thinly sliced
  • 4 slices Swiss or American cheese

Instructions

  1. In a small bowl, mix together the mayonnaise, ketchup, mustard, pickle relish, garlic powder, and paprika to make the secret sauce. Set aside.
  2. Shape the ground beef into two thin, wide patties that match the shape of your bread. Season with salt, pepper, and garlic powder if using.
  3. Cook the patties in a skillet over medium-high heat for 3–4 minutes per side until browned and cooked through. Set aside.
  4. In the same skillet, reduce heat and add a bit of butter. Cook the sliced onions for 10–15 minutes until caramelized and golden.
  5. Butter one side of each bread slice. On the unbuttered side, layer cheese, a cooked patty, caramelized onions, a spoonful of secret sauce, more cheese, and top with another slice of bread, buttered side out.
  6. Place the sandwiches in a skillet over medium heat. Cook until the bread is golden brown and crispy and the cheese is melted, pressing gently with a spatula.
  7. Slice and serve immediately, with extra sauce on the side if desired.

Notes

  • Add caramelized mushrooms or sautéed peppers for extra flavor.
  • Swap cheeses—cheddar, provolone, or pepper jack work well.
  • Use whole grain or Texas toast if rye is unavailable.
  • Add a fried egg for a breakfast-style patty melt.
  • Store leftovers in foil in the fridge for up to 2 days; reheat in skillet or oven to keep crispy.

Nutrition

  • Serving Size: 1 sandwich
  • Calories: 680
  • Sugar: 5g
  • Sodium: 920mg
  • Fat: 42g
  • Saturated Fat: 17g
  • Unsaturated Fat: 22g
  • Trans Fat: 1g
  • Carbohydrates: 38g
  • Fiber: 2g
  • Protein: 36g
  • Cholesterol: 105mg