Blackstone Patty Melt is quick and easy to make thanks to the Blackstone Griddle. Make an delicious Old Fashion diner patty melt at home.

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If you grew up getting a Patty Melt at your local diner, then you already know how delicious this sandwich is. Cooking the Patty Melt on your Blackstone makes it easy to cook and it turns out perfect.
Some may call it a sandwich others call it a burger, it is the perfect blend of both. It doesn’t matter what you call it, it is delicious. You might like Blackstone Grilled Cheese Sandwich and Blackstone Grilled Ham and Cheese. Blackstone Griddle Recipes are easy to make.
Table of Contents
What is a Patty Melt?
A patty melt is a meaty, tasty that is fried to perfection with caramelized onions. The combination of the two burger patties and onions are placed between toasted bread to make a patty melt.
Is a Patty Melt the Same as a Cheeseburger?
It is similar to a cheeseburger but it is just what you grew up calling it. This patty melt has been made in restaurants since the 1970s and still enjoyed today.
Ingredients

Scroll to the bottom for the full recipe and ingredients in the recipe card.
Substitutions and Additions
- Change the Cheese – You can easily use any of your favorite types of cheese in this recipe if you do not like Swiss Cheese.
- Bread – You can use a variety of different bread. Just as long as it is a good thick bread. We even like this Blackstone Recipes with toasty rye bread with the gooey cheese.
- Add Dressing – For added flavor, top the sandwich with mustard or mayonnaise.
How to Make Patty Melt on a Blackstone Griddle

Step 1 – Preheat the Blackstone Grill over medium high heat. Divide the ground beef into 2 even balls (approximately 3 oz each).

Step 2 – Butter one side of each piece of the sourdough bread with 1 tablespoon of the butter.

Step 3 – Melt the remaining butter on one side of the griddle. Then top the melted butter with the sliced onions. Sauté the onions in the butter until they are caramelized (3-5 minutes).

Step 4 – While the onions are cooking, place the ground beef on the grill. Put a piece of parchment paper on top of the beef and use a spatula or a burger press to smash the meat into 2 thin patties. Season with salt and pepper and garlic powder.

Step 5 – Let the patties cook until they are golden browned and crispy (2-3 minutes). Then flip the patties over (do not smash) and cook the other side for 2-3 minutes until it is also browned and crispy.

Step 6 – Place a slice of cheese on each patty.

Step 7 – Put the bread on the Blackstone grill butter side down and toast the bread.

Step 8 – Then assemble the sandwich. Place one piece of the bread on a plate (toasted side down), top with 1 of the patties, half of the fried onions, then the remaining patty, the rest of the grilled onions and top with the 2nd piece of bread slice (toasted side on top).
- Step 9 – Cut in half and the homemade patty melt recipe is ready to serve and enjoy!
Patty Melt Blackstone Tips
- Bread Type – Make sure to use rye bread, sourdough bread or artisan bread for this recipe. White bread will fall apart if used in this recipe.
- Caramelizing Onions – When cooking the onions, let the onions cook slowly to enhance the flavor.
- Cooking Meat – We recommend cooking the meat in the buttery onion flavor for enhancing the flavor.

What to Serve with a Patty Melt?
How to Store
These patty melts are best served fresh. If you do have leftovers, I would store the hamburger and onions separately from the bread. Place in a airtight container for up to 3 days in the refrigerator.

How to Reheat
Reheat patty melt in the microwave or on the Blackstone Griddle if you want to toast some more bread.

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We love to hear from you. If you make this Blackstone patty melt recipe, please leave us a comment or a star review.

Blackstone Patty Melt
Ingredients
- 2 Slices Sourdough Bread
- 6 oz Ground Beef
- ½ White Onion sliced
- 2 Tbsp Butter
- 2 Slices Swiss Cheese
Instructions
- Preheat the Blackstone Grill over medium high heat (approximately 450 degrees F). Divide the ground beef into 2 even balls (approximately 3 oz each).
- Butter one side of each piece of the sourdough bread with 1 Tbsp of the butter.
- Melt the remaining butter on one side of the griddle. Then top the melted butter with the sliced onions. Sauté the onions in the butter until they are caramelized (3-5 minutes).
- While the onions are cooking, place the ground beef on the grill. Put a piece of parchment paper on top of the beef and use a spatula or a burger press to smash the meat into 2 thin patties.
- Let the patties cook until they are browned and crispy (2-3 minutes). Then flip the patties over (do not smash) and cook the other side for 2-3 minutes until it is also browned and crispy.
- Place a piece of the Swiss cheese on each patty.
- Put the bread on the blackstone grill butter side down and toast the bread.
- Then assemble the sandwich. Place one piece of the bread on a plate (toasted side down), top with 1 of the patties, half of the fried onions, then the remaining patty, the rest of the fried onions and top with the 2nd piece of bread (toasted side on top).
- Cut in half and the patty melt is ready to serve and enjoy!
Recipe Video
