A crispy, diner-style Blackstone Patty Melt with smashed beef patties, melty Swiss cheese, and sweet caramelized onions on buttery toasted rye — all cooked on the griddle for the perfect crunch.
Ingredients
1lbground beef, 80/20
8slicesrye bread, or marble rye
8slicesSwiss cheese
1largeonion, thinly sliced
4tablespoonsbutter, softened
1tablespoonoil, for the onions
Salt and pepper, to taste
Ketchup and mustard, optional for serving
Instructions
Preheat the Blackstone griddle to medium-high, about 400°F.
Add oil and sliced onions to one side; cook 10–15 minutes, stirring, until deeply caramelized. Move to a cooler zone to keep warm.
Divide beef into 4 loose balls (~4 oz each). Place on the hot griddle, cover with parchment, and smash flat. Season with salt and pepper. Cook 2–3 minutes until crispy.
Flip (don't smash) and cook 1–2 minutes more. Top each patty with Swiss cheese and let melt.
Butter one side of each slice of rye. Toast butter-side down 2–3 minutes until golden.
Assemble: toasted slice, patty, caramelized onions, second slice. Press on the griddle 1–2 minutes per side until melted and crisp.
Slice in half and serve hot with ketchup and mustard.
Equipment
Blackstone griddle (or cast-iron skillet)
Burger press or sturdy spatula
Parchment Paper
Notes
For extra-crispy edges, run a hot zone at 425–450°F for the beef.
Real caramelized onions need 10–15 minutes; 5 minutes gives soft golden onions in a hurry.
Cook ground beef to a safe internal temperature of 160°F.