Best Diner Style Patty Melt Recipes

DINER-STYLE PATTY MELT

Steps:

• Heat butter and oil in a Dutch oven. Add onions, season with salt and pepper, cook, stirring continually, for 3 minutes. Cover with a lid and allow onions to caramelize, stirring occasionally to prevent burning, about 20 minutes.
• Meanwhile, combine ground beef, garlic salt, and pepper in a bowl and mix thoroughly. Shape ground beef into 4 rectangular patties.
• Cook patties in a skillet over medium-high heat, flipping once, 3 to 4 minutes per side. Add a slice of Swiss cheese to each patty and top each with an equal amount of caramelized onions.
• Set an oven rack about 6 inches from the heat source and preheat the oven's broiler.
• Spread 1 teaspoon butter over each slice of bread. Broil until lightly golden and toasted. Assemble patty melts and serve immediately.

DINER-STYLE PATTY MELT

Steps:

• Season beef with salt and pepper; divide into 4 patties. Form each patty into a thin oval that is slightly larger than a slice of bread you're using.
• Heat 1 Tbsp. oil in a large skillet or griddle, preferably cast iron, over medium-high. Cook onion slices in a single layer, being careful not to let rings separate, until softened and charred, about 4 minutes per side. Transfer to a plate and divide into individual rings.
• Add remaining 1 Tbsp. oil to skillet. Working in batches if needed, cook patties, pressing flat with a spatula, until browned but still pink in the center, about 1 1/2 minutes per side. Transfer to a plate.
• Wipe out skillet and reduce heat to medium-low. Top each slice of bread with 1 cheese slice, 1 patty, one-quarter of the onions, another slice of cheese, then a second slice of bread. Spread tops of each sandwich with 1 tsp. mayonnaise. Working in batches if needed, cook sandwiches, mayo side down, spreading the top of each sandwich with 1 tsp. mayonnaise, until golden brown, about 3 minutes. Flip and continue to cook until bread is golden brown and cheese is melted, about 3 minutes.