Patty Melts with Secret Sauce

Ingredients:

For the Patty Melts:
1 lb ground beef (80/20)
1 tsp Worcestershire sauce
½ tsp salt
½ tsp black pepper
1 tbsp butter
1 large onion, thinly sliced
4 slices Swiss cheese
4 slices cheddar cheese
8 slices rye bread
2 tbsp butter (for grilling)

For the Secret Sauce:
½ cup mayonnaise
2 tbsp ketchup
1 tbsp Dijon mustard
1 tsp Worcestershire sauce
1 tsp pickle relish
½ tsp garlic powder
½ tsp onion powder
Salt & pepper, to taste

Instructions:

Caramelize the Onions

Heat 1 tbsp butter in a skillet over medium heat.
Add sliced onions and cook until golden brown and soft (about 15 minutes), stirring occasionally.
Prepare the Secret Sauce

In a bowl, mix all sauce ingredients until smooth.
Refrigerate until ready to use.
Cook the Beef Patties

In a bowl, mix ground beef, Worcestershire sauce, salt, and pepper.
Shape into thin patties, roughly the size of your bread slices.
Cook in a skillet over medium-high heat for about 3-4 minutes per side until fully cooked.
Assemble the Patty Melts

Spread secret sauce on each slice of rye bread.
Layer a slice of Swiss cheese, a beef patty, caramelized onions, cheddar cheese, and another bread slice.
Grill to Perfection

Heat 1 tbsp butter in a skillet.
Cook each sandwich over medium heat until golden brown and the cheese is melted (about 2-3 minutes per side).
Serve & Enjoy!

Slice and serve hot with extra secret sauce for dipping.
Pro Tip: Add crispy bacon or jalapeños for extra flavor!