Patty Melt with Secret Sauce

When you’re craving the ultimate comfort food, nothing satisfies quite like an indulgent patty melt sandwich.

Loaded with a juicy beef patty, sweet caramelized onions, gooey melted cheese, and tangy secret sauce, this diner classic is decadent and delicious.

Making patty melts at home is a cinch and so worth it.

With just 10 minutes of prep time, you’ll have crave-worthy melty sandwiches ready in under an hour.

This easy recipe guides you through caramelizing onions and whipping up the secret sauce that takes this sandwich over the top.

Ingredients

For the Secret Sauce

1/4 cup mayonnaise
2 tablespoons ketchup
1 tablespoon Dijon mustard
1 teaspoon pickle juice
1/4 teaspoon paprika
1/4 teaspoon garlic powder

For the Patty Melts

2 tablespoons olive oil
2 large onions thinly sliced
12 ounces 85/15 lean ground beef
1/2 teaspoon salt
1/2 teaspoon black pepper
1 teaspoon Worcestershire sauce
8 slices rye bread
3 tablespoons unsalted butter softened
4 Swiss cheese slices
4 cheddar cheese slices