Enjoy restaurant-style comfort food at home with this easy Patty Melt recipe topped with melted cheese, sweet caramelized onions and a delicious Secret Sauce.
Ingredients
For the Secret Sauce
1/4 cup mayonnaise
2 tablespoons ketchup
1 tablespoon Dijon mustard
1 teaspoon pickle juice
1/4 teaspoon paprika
1/4 teaspoon garlic powder
For the patty Melts
2 tablespoons olive oil
2 large onions, thinly sliced
12 ounces 85/15 lean ground beef
1/2 teaspoon salt
1/2 teaspoon black pepper
1 teaspoon Worcestershire sauce
8 Slices of rye bread
3 tablespoons softened, unsalted butter
4 slices of Swiss cheese
4 slices of cheddar cheese
Instructions
Making the secret sauce
In a small bowl, combine the mayonnaise, ketchup, mustard, pickle juice, paprika and garlic powder.
Beat until completely combined and set aside.Preparing the onions and meat
Heat the olive oil in a frying pan over medium-low heat. Add the sliced onions. Cook, stirring occasionally, until the onions are deep golden brown and caramelized, 30-40 minutes. If the onion starts to stick, add a splash of water.2. In a bowl, combine ground beef, salt, pepper and Worcestershire sauce. Form four thin, oval flat cakes.
Fry burgers in the same pan over medium heat until golden brown, about 2-3 minutes per side.Remove and reserve.
Assemble and bake the sandwiches.
Brush one side of each slice of bread with softened butter.
Top and bottom slices of bread butter side down with Swiss cheese, beef patties, caramelized onions, secret sauce, cheddar cheese and top slice of bread butter side up.3. Cook in batches over medium heat until both sides are golden brown and cheese is completely melted, about 1-2 minutes per side.
Storage
Store the remaining Secret Sauce covered in the refrigerator for up to 5 days.