Ultimate Patty Melts with Secret Sauce: A Classic Sandwich Recipe

Indulge in the ultimate comfort food with our Ultimate Patty Melts with Secret Sauce. This classic sandwich combines juicy beef patties, caramelized onions, melted Swiss cheese, and a tangy secret sauce, all grilled to perfection between slices of rye bread. Perfect for lunch or dinner, this recipe is a crowd-pleaser that’s easy to make and packed with flavor.

Ingredients

For the Patty Melts:

• 1 lb ground beef (80/20 blend for best flavor)
• Salt and pepper to taste
• 8 slices rye bread (or substitute sourdough or Texas toast)
• 8 slices Swiss cheese (or try cheddar or provolone for a twist)
• 2 large yellow onions, thinly sliced
• 4 tablespoons butter, divided

Optional Toppings:

• Lettuce, tomato slices, pickles
• Extra condiments like mustard or ketchup

Secret Sauce:

• 1/4 cup mayonnaise
• 2 tablespoons ketchup
• 1 tablespoon sweet pickle relish
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• A dash of hot sauce (optional, for a kick)

Instructions

Prepare the Secret Sauce

Mix all secret sauce ingredients in a small bowl. Refrigerate for at least 15 minutes to let the flavors meld.

Form the Patties

Divide the ground beef into 4 equal portions and gently shape into flat patties, slightly larger than your bread (they shrink while cooking). Season both sides with salt and pepper.

Cook the Patties

Heat 1 tablespoon of butter in a large skillet over medium-high heat. Cook patties for 4–5 minutes per side until nicely browned and cooked through. Set aside.

Caramelize the Onions

In the same skillet, melt the remaining butter. Add sliced onions and cook on medium-low heat for 15–20 minutes, stirring occasionally, until soft and golden brown. Remove and set aside.

Assemble the Sandwiches

Wipe the skillet clean. Lay out 4 slices of bread. On each, add a slice of Swiss cheese, a cooked patty, a spoonful of caramelized onions, and a second slice of cheese. Spread a generous amount of secret sauce on the top slice of bread, then place it on the sandwich.

Grill to Perfection

Return sandwiches to the skillet over medium heat. Press them down slightly and cook for 2–3 minutes per side until the bread is golden and the cheese is melted. Cook in batches if necessary.

Serve and Enjoy

Let the patty melts rest briefly, then slice in half and serve hot with fries, pickles, or a side salad.

Helpful Tips

• Bread Choice: Rye adds classic flavor, but sourdough or brioche makes for a delicious twist.
• Cookware: Use a cast iron skillet for the best crust and even cooking.
• Make Ahead: Caramelized onions and the secret sauce can be prepped a day in advance to save time.

Enjoy your Ultimate Patty Melts with Secret Sauce!