Smashing Patty Melts Sauce
This Smashing Patty Melts Sauce style recipe brings together juicy beef patties, deeply caramelized onions, melted Swiss cheese, and crisp rye bread for a rich, diner inspired sandwich made right at home.
Ingredients
- 1 tablespoon olive oil
- 2 cups thinly sliced onions
- Kosher salt to taste
- Black pepper to taste
- 6 tablespoons unsalted butter divided
- 1.5 pounds lean ground beef
- 1 tablespoon ketchup
- Worcestershire sauce to taste
- ½ teaspoon onion powder
- 8 slices rye bread
- 8 ounces Swiss cheese sliced
Instructions
- Heat olive oil in a skillet over medium low heat. Add the sliced onions, season lightly with salt and black pepper, and cook for 20 to 25 minutes, stirring now and then, until they turn soft, golden, and sweet. If they brown too quickly, lower the heat. Transfer to a plate and set aside.
- In a mixing bowl, combine the ground beef, ketchup, Worcestershire sauce, onion powder, salt, and black pepper. Gently mix just until combined to keep the meat tender. Shape into four patties slightly larger than the rye bread to allow for shrinkage.
- Place a cast iron skillet over medium heat and melt 2 tablespoons of butter. Cook the patties for 4 to 5 minutes per side until a deep brown crust forms and the centers remain juicy. Remove from the skillet and set aside.
- Carefully wipe the skillet clean and melt the remaining butter over medium heat. Place four slices of rye bread in the skillet, then layer each with one patty, caramelized onions, and two slices of Swiss cheese. Top with the remaining bread slices.
- Grill the sandwiches for 2 to 4 minutes per side, pressing gently with a spatula, until the bread is crisp and golden and the cheese is fully melted. Adjust the heat if the bread browns faster than the cheese melts.