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Patty Melts with Secret Sauce

Patty Melts with Secret Sauce

These Patty Melts with Secret Sauce bring together juicy seasoned beef, buttery grilled rye bread, melty cheese, and rich caramelized onions. Paired with a tangy homemade sauce, this diner classic becomes an irresistible homemade comfort meal.
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Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 4 servings
Course: Dinner
Cuisine: American
Ingredients Method Notes

Ingredients
  

Patty Melts
  • 1 lb Ground beef
  • 1 large Onion, thinly sliced
  • 8 slices Rye bread
  • 4 slices Swiss cheese
  • 4 slices Cheddar cheese
  • Butter for grilling
  • Salt and pepper to taste
Secret Sauce
  • 1/2 cup Mayonnaise
  • 2 tbsp Ketchup
  • 1 tbsp Sweet pickle relish
  • 1 tsp Worcestershire sauce Ensure alcohol-free if needed.

Method
 

  1. In a small bowl, mix mayonnaise, ketchup, relish, and Worcestershire sauce to make the secret sauce. Set aside.
  2. Melt 1 tablespoon butter in a skillet over medium heat. Add sliced onions and cook until caramelized, 15–20 minutes. Remove and set aside.
  3. Divide ground beef into 4 portions and form thin patties. Season both sides with salt and pepper.
  4. Cook patties in the same skillet over medium-high heat for 3–4 minutes per side. Remove and set aside.
  5. Butter one side of each slice of rye bread. Place 4 slices butter-side down on a skillet or griddle.
  6. Top each slice with Swiss cheese, a beef patty, caramelized onions, cheddar cheese, and a second bread slice, butter-side up.
  7. Cook sandwiches for 2–3 minutes per side, until the bread is golden and cheese melted.
  8. Remove, let rest for a minute, slice, and serve with the secret sauce.

Notes

For extra flavor, toast the rye bread lightly before assembling, or add sautéed mushrooms to the onions for a deeper, savory taste.