Patty Melts with Secret Sauce

Patty melts are the ultimate comfort food, combining crispy bread, juicy beef patties, melted cheese, and sweet caramelized onions. This diner favorite gets a special twist with a tangy, creamy secret sauce that ties everything together. Whether you’re cooking for a weeknight dinner or a weekend treat, this recipe is sure to impress.

I’ve made this recipe countless times, and it never fails to bring smiles to the table. The secret sauce, in particular, is a game-changer—it adds a tangy, creamy element that elevates the entire dish.

Ingredients and Why They Matter

• Ground Beef (1 lb): Opt for 80/20 ground beef for the perfect balance of flavor and juiciness. Leaner cuts can dry out the patties.
• Rye Bread (8 slices): Rye bread’s hearty texture and slight tanginess complement the rich flavors of the patty melt. If unavailable, sourdough works well too.
• Swiss and Cheddar Cheese (4 slices each): Swiss adds a nutty, mild flavor, while cheddar brings a sharp, creamy richness. Together, they create the perfect cheesy blend.
• Onion (1 large): Caramelized onions add a sweet, savory depth that balances the richness of the beef and cheese.
• Butter: Used for grilling, butter gives the bread a golden, crispy exterior.
• Secret Sauce Ingredients:

• Mayonnaise (½ cup): Provides a creamy base.
• Ketchup (2 tbsp): Adds a touch of sweetness and tang.
• Sweet Pickle Relish (1 tbsp): Introduces a hint of sweetness and crunch.
• Worcestershire Sauce (1 tsp): Enhances the umami flavor of the sauce.

Step-by-Step Instructions

Prepare the Secret Sauce:

In a small bowl, combine the mayonnaise, ketchup, sweet pickle relish, and Worcestershire sauce. Mix until smooth and set aside. This sauce can be made ahead of time and stored in the fridge for up to a week.

Caramelize the Onions:

Heat a tablespoon of butter in a large skillet over medium heat. Add the thinly sliced onions and cook slowly, stirring occasionally, until they turn golden brown and sweet, about 15–20 minutes. Be patient—this step is key to building flavor.

Cook the Patties:

Divide the ground beef into four equal portions and shape them into thin patties. Season both sides generously with salt and pepper. In the same skillet used for the onions, cook the patties over medium-high heat for 3–4 minutes per side, or until fully cooked. Transfer the patties to a plate and set aside.

Assemble the Patty Melts:

Butter one side of each slice of rye bread. Place four slices, butter-side down, on a preheated skillet or griddle over medium heat. Layer each slice with a slice of Swiss cheese, a cooked patty, a generous portion of caramelized onions, and a slice of cheddar cheese. Top with another slice of bread, butter-side up.

Grill the Patty Melts:

Cook the sandwiches for 2–3 minutes per side, or until the bread is golden brown and the cheese is melted. Press down gently with a spatula to ensure even cooking.

Serve:

Let the patty melts rest for a minute before slicing them in half. Serve warm with the secret sauce on the side or drizzled over the top.

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The secret sauce is my favorite part of this recipe. It’s tangy, creamy, and adds a burst of flavor to every bite. My family loves it so much that I often make extra to use as a dip for fries or veggies.

Serving Suggestions

Pair your patty melts with crispy fries, sweet potato wedges, or a fresh side salad for a balanced meal. A pickle spear on the side adds a refreshing crunch. For a heartier option, serve with a bowl of tomato soup or coleslaw.

Variations and Tips

• Lighter Option: Use ground turkey or chicken instead of beef for a leaner version.
• Cheese Alternatives: Try pepper jack, provolone, or your favorite cheese for a unique twist.
• Vegetarian Option: Substitute plant-based burger patties for a delicious meat-free alternative.
• Extra Sauce: Double the secret sauce recipe—it’s so good, you’ll want extra for dipping.

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This recipe is a timeless classic that never goes out of style. The combination of flavors and textures is simply unbeatable, and the secret sauce takes it to the next level. Whether you’re cooking for yourself or a crowd, these patty melts are sure to satisfy.

Frequently Asked Questions

→ Which bread works best for patty melts?

Rye bread is traditional and holds up well to grilling. Sourdough makes a good alternative.

→ How do I get perfectly caramelized onions?

Cook slowly over medium heat for 15-20 minutes, stirring occasionally. Don't rush the process.

→ Can I make the secret sauce ahead?

Yes, make up to 3 days ahead and store in an airtight container in the fridge.

→ What makes a patty melt different from a burger?

Patty melts use grilled bread instead of buns and always include melted cheese and caramelized onions.

→ How thin should I make the patties?

Form thin, wide patties as they'll shrink while cooking. Aim for slightly larger than the bread slices.