
A classic patty melt combines juicy beef, melted cheese, and sweet caramelized onions between slices of crispy grilled bread. This diner-style sandwich gets elevated with a homemade tangy sauce that brings all the flavors together perfectly. It's a hearty, satisfying meal that works just as well for weeknight dinners as weekend cooking.
The combination of Swiss and cheddar cheese creates the perfect melt, while slow-cooked onions add natural sweetness. The special sauce recipe has been refined over many iterations to complement the rich flavors.
Key Ingredients
- Ground Beef (1 lb, 80/20): The ideal fat content for juicy, flavorful patties
- Rye Bread (8 slices): Traditional choice that adds depth of flavor
- Swiss Cheese (4 slices): Mild and nutty
- Cheddar Cheese (4 slices): Sharp and creamy
- Yellow Onion (1 large): For sweet caramelization
- Butter: For achieving golden, crispy bread
- Sauce Components:
- Mayonnaise (½ cup)
- Ketchup (2 tbsp)
- Sweet Pickle Relish (1 tbsp)
- Worcestershire Sauce (1 tsp)
Preparation Method
- Making the Sauce:
- Mix mayonnaise, ketchup, relish and Worcestershire sauce until well combined. Refrigerate until needed.
- Onion Preparation:
- Cook sliced onions in butter over medium heat, stirring occasionally until golden brown and tender, about 20 minutes.
- Cooking the Beef:
- Form beef into 4 thin patties. Season with salt and pepper. Cook in skillet 3-4 minutes per side until done.
- Assembly:
- Butter bread slices. Layer Swiss cheese, cooked patty, onions, and cheddar on buttered bread. Top with second slice.
- Final Cooking:
- Grill sandwiches 2-3 minutes per side until golden brown and cheese melts. Press gently.
- Service:
- Rest briefly, slice diagonally, serve with sauce.

The special sauce adds a tangy, creamy element that elevates this sandwich beyond a basic patty melt. Make extra sauce to keep on hand for other dishes.
Serving Ideas
Serve alongside french fries, potato wedges, or a fresh green salad. Add dill pickles for crunch. For a complete meal, pair with hot tomato soup or homemade coleslaw.
Recipe Variations
- Healthier Version: Use ground turkey and whole grain bread
- Different Cheeses: Try provolone or pepper jack
- Meat-Free: Use veggie patties
- Extra Sauce: Double the sauce recipe for leftovers

This tried-and-true patty melt recipe delivers restaurant quality results at home. The combination of quality ingredients and careful preparation creates an exceptional sandwich.
Frequently Asked Questions
- → What type of bread is best for patty melts?
- Rye bread is the classic choice since it holds up during grilling, but sourdough works well too.
- → How do you caramelize onions properly?
- Let them cook low and slow over medium heat for around 15-20 minutes, stirring every now and then for even browning.
- → Can I prep the special sauce ahead of time?
- Absolutely! You can refrigerate it in a sealed container for up to three days.
- → What makes a patty melt unique compared to a burger?
- Instead of a bun, patty melts are made with grilled bread, plus they always include melted cheese and sweet onion slices.
- → How large should the patties be?
- Shape them thin and wide since they’ll shrink when cooked. Try to make them just a bit bigger than your bread.