Blackstone Patty Melt Recipe: Juicy Griddle Cheeseburger Melt

If you grew up enjoying a patty melt at your local diner, you know how comforting and delicious it can be. Cooking it on a Blackstone griddle makes the process fast and gives even heat for perfectly browned beef and toasted bread.

Part sandwich, part burger, the patty melt blends the best of both worlds. Use your favorite bread and cheese combinations—sourdough or rye and Swiss are classic, but feel free to swap cheeses. Blackstone griddle recipes like this are straightforward and yield reliably great results.

What is a Patty Melt?

A patty melt combines seasoned ground beef patties and caramelized onions layered between slices of toasted bread with melted cheese. The result is a rich, savory sandwich with crisp edges and gooey cheese.

Is a Patty Melt the Same as a Cheeseburger?

They are similar but distinct. A cheeseburger is typically served on a bun, while a patty melt uses sliced bread, often rye or sourdough, and features caramelized onions and melted cheese pressed into the bread. The patty melt has been a diner favorite for decades.

Ingredients

Scroll to the recipe card below for exact measurements. In short, you’ll need bread (sourdough or rye), ground beef, a white onion, butter for sautéing and toasting, and slices of cheese such as Swiss.

Substitutions and Additions

• Change the Cheese – Swap Swiss for cheddar, provolone, or your preferred melting cheese.
• Bread – Use sturdy, thick-sliced breads like sourdough, rye, or artisan loaf. Thin sandwich bread may fall apart.
• Add Dressing – Spread a thin layer of mustard or mayo for extra flavor before assembling.

How to Make Patty Melt on a Blackstone Griddle

Step 1 – Preheat the Blackstone to medium-high (about 450°F). Divide the ground beef into two even portions.

Step 2 – Butter the bread on one side of each slice with about 1 tablespoon of butter so the bread toasts nicely on the griddle.

Step 3 – Caramelize the onions Melt the remaining butter on one side of the griddle, then add the sliced onions. Cook slowly until they are soft and caramelized, about 3–5 minutes, stirring occasionally.

Step 4 – Smash the patties While the onions cook, place the beef on the griddle. Lay a piece of parchment over the meat and press with a spatula or burger press into thin patties. Season with salt, pepper, and garlic powder.

Step 5 – Cook until crispy Let the patties cook undisturbed until browned and crispy around the edges, about 2–3 minutes. Flip and cook the other side 2–3 minutes more.

Step 6 – Add cheese Place a slice of cheese on each patty to melt while finishing the patties.

Step 7 – Toast the bread Place the buttered bread slices butter-side down on the griddle and toast until golden.

Step 8 – Assemble the sandwich On a plate, place one toasted slice (toasted side down), add one patty, half the caramelized onions, the second patty, the remaining onions, and top with the second toasted slice (toasted side up).

• Step 9 – Serve Cut the sandwich in half and serve immediately while the cheese is melted and the bread is crisp.

Patty Melt Blackstone Tips

• Bread Type – Choose a sturdy bread like sourdough, rye, or artisan slices that will hold the filling and toast well.
• Caramelizing Onions – Cook onions slowly over moderate heat to draw out sweetness and deepen flavor.
• Cooking Meat – Let the patties develop a golden, crispy crust before flipping. Cooking in the buttery onion-flavored area of the griddle adds extra savory depth.

What to Serve with a Patty Melt?

• Sweet potato fries or classic french fries for a diner-style meal.
• Grilled vegetables like zucchini and squash for a lighter side.
• A simple green salad or pickles to cut the richness.

How to Store

Patty melts are best eaten fresh. If you have leftovers, store cooked patties and caramelized onions separately from the bread in airtight containers in the refrigerator for up to 3 days to preserve texture.

How to Reheat

Reheat gently on the griddle to crisp the bread and remelt the cheese, or microwave briefly if convenience is needed. Reheating on the griddle yields the best texture.