Patty Melts With Secret Sauce

THE PATTY MELT RECIPE IS A DINER CLASSIC AND ALWAYS HITS THE SPOT! THIS MELTY, CHEESY, MEATY SANDWICH IS PERFECT FOR AN EASY DINNER THE WHOLE FAMILY WILL LOVE!

Topped with creamy cheddar cheese, secret sauce, and caramelized onions, our patty melts with secret sauce will quickly become a family favorite.
A diner classic, Patty Melts are made with very thin, oval shaped burger patties, and served on thin grilled rye bread, with caramelized onion, and Swiss cheese. Just amazingly delicious!

Ingredients

1½ pounds ground beef
2 teaspoons Worcestershire sauce
1 teaspoon kosher salt
½ teaspoon ground black pepper
12 slices sourdough bread
½ cup Secret Sauce
3 medium Vidalia onions, thinly sliced
6 slices Cheddar cheese
8 tablespoons unsalted butter

Secret Sauce:
¼ cup Dijon mustard
¼ cup mayonnaise
1 tablespoon barbecue sauce
½ teaspoon hot sauce
In a small bowl, stir together mustard, mayonnaise, barbecue sauce, and hot sauce. Store, covered, in refrigerator up to 3 days

Directions
In a large bowl, combine ground beef, Worcestershire, salt, and pepper. Shape ground beef into 6 oval patties.
In a medium cast-iron skillet, melt 2 tablespoons butter over medium heat. Add onion. Cook, stirring occasionally, until onion is soft and golden brown, approximately 35 minutes.
In a large cast-iron skillet, cook patties over medium-high heat until browned and cooked through, approximately 2 minutes per side. Remove skillet from heat. Remove patties from skillet; wipe out skillet.
Layer 1 bread slice with 1 tablespoon Secret Sauce, 2 to 3 tablespoons caramelized onions, 1 slice cheese, 1 patty, and another 1 tablespoon Secret Sauce. Top with another bread slice. Repeat with remaining bread, Secret Sauce, caramelized onions, cheese, and patties.
Heat skillet over medium-high heat. Melt 2 tablespoons butter in skillet. Working in batches, cook sandwiches, flipping once, until golden brown and heated through, approximately 3 minutes per side. Add remaining butter to skillet as needed.