Ultimate Patty Melt with Secret Sauce

Introduction
The Ultimate Patty Melt with Secret Sauce combines the best of a juicy burger and a crispy grilled cheese sandwich. With perfectly seasoned beef patties, sweet caramelized onions, gooey Swiss cheese, and a tangy, creamy secret sauce, all sandwiched between buttery toasted rye bread, this patty melt delivers irresistible flavor in every bite. Whether for a quick weeknight dinner or a weekend indulgence, this recipe is sure to satisfy your cravings!

Ingredients
For the Patty Melt:

1 lb ground beef
8 slices of rye bread
8 slices of Swiss cheese
1 large onion, thinly sliced
4 tbsp butter, plus more for spreading
Salt and pepper to taste
For the Secret Sauce:

½ cup mayonnaise
2 tbsp ketchup
1 tbsp relish
1 tsp Worcestershire sauce
½ tsp garlic powder
½ tsp onion powder
Salt and pepper to taste
How to Make
Prepare the Secret Sauce: