Classic Patty Melt Secret Sauce (Printer-Friendly Version)

# What You'll Need:

01 - 1 pound ground beef (80/20 blend)

02 - 1 teaspoon Worcestershire sauce

03 - Salt and pepper, to taste

04 - 4 slices Swiss cheese

05 - 4 slices rye or sourdough bread

06 - 1 medium onion, thinly sliced

07 - 2 tablespoons butter, softened

08 - 1 tablespoon vegetable oil

09 - 1/2 cup mayonnaise

10 - 2 tablespoons ketchup

11 - 1 tablespoon Dijon mustard

12 - 1 tablespoon pickle relish

13 - 1 teaspoon garlic powder

14 - 1 teaspoon onion powder

15 - Salt and pepper, to taste

01 - Mix mayonnaise, ketchup, Dijon, relish, garlic powder, onion powder, salt and pepper in a bowl. Refrigerate

02 - Mix ground beef with Worcestershire sauce, salt, and pepper. Form into 4 patties slightly larger than bread slices

03 - Cook sliced onions in oil over medium heat for 10-15 minutes until golden brown. Set aside

04 - Cook patties 3-4 minutes per side in same skillet. Top with cheese while cooking second side

05 - Butter bread slices and toast in separate skillet until golden brown on both sides

06 - Spread secret sauce on unbuttered sides, add cheesy patties and onions between bread slices

07 - Grill assembled sandwiches 3-4 minutes per side until crispy, pressing down slightly

01 - Best served hot with extra sauce for dipping

02 - Choose rye bread for traditional flavor or sourdough for extra tang

03 - Let sauce chill for best flavor development