The Beefy Patty Melt is the definition of comfort food! It’s a mashup between a grilled cheese and a juicy burger, all pressed together in one irresistible sandwich. Think tender beef, gooey cheese, buttery crisp bread, and a pile of sweet caramelized onions, all tied together with a creamy, tangy sauce. It’s the kind of meal that makes you feel like you’re sitting in a cozy diner booth, but you can easily make it at home.
This is the best of diner food. It’s easy, hearty, and the flavor is spot-on. With creamy, golden onions and a homemade burger sauce, it transforms simple ingredients into something crave-worthy. Perfect for a laid-back dinner or your next game day spread.
Ingredients
For the Patty Melts
- Ground beef – I like cooking with 80/20 for a combination of flavor and fattiness.
- Rye bread or sourdough – Or your favorite bakery-fresh bread. Sandwich bread might fall apart after it gets soggy so use a good dense bread.
- Butter – Salted or unsalted, whatever you have on hand.
- Provolone cheese – Get it sliced from the deli or shred it yourself with a rotary grater.
- Cheddar cheese – I like sharp cheddar but you could use smoked cheddar for an extra burst of flavor.
- Mustard – Hot dog mustard or spicy mustard, whichever you like!
- Worcestershire sauce
- Spices: Garlic powder, salt, black pepper
For the Caramelized Onions
- Onions – Start with yellow or sweet onions.
- Balsamic vinegar – A little goes a long way but if you don’t have balsamic, you can use apple cider vinegar.
- Butter – Salted or unsalted.
For the Burger Sauce
- Mayonnaise – Use your favorite mayo. Any kind will work but I’m partial to Duke’s or avocado oil mayo.
- Dill pickle relish – I prefer dill relish but you could use sweet pickle relish in this sauce.
- Ketchup
- Yellow mustard
How to Make Beffy Patty Melt
Scroll down for the full recipe card with exact measurements and printable instructions.
Begin with the caramelized onions. Melt butter in a large nonstick skillet over medium-low heat, then toss in the sliced onions. Cook them low and slow, stirring occasionally, until they’re tender, jammy, and golden; this takes about 25 to 30 minutes. Stir in balsamic vinegar at the very end for a rich, tangy finish. I love using a nonstick skillet because it prevents sticking and lets the onions cook evenly without burning.
While those are caramelizing, whisk together the burger sauce in a small mixing bowl which is perfect for sauces, dips, and dressings. Combine the mayonnaise, ketchup, mustard, and pickle relish until smooth and creamy. Set aside for later.
When shaping the patties, a burger press is my go-to tool. It creates uniform, thin patties that match the shape of the bread, which means every bite has just the right ratio of beef to cheese to bread. Plus, it helps prevent uneven cooking and shrinkage on the skillet.
With the patties formed and cooked, and the cheese melted over the top, it’s time to assemble. Butter the bread generously for that golden crunch. Grill each sandwich in your skillet, pressing gently with a spatula to get that crisp, diner-style sear. The result is a melt-in-your-mouth sandwich with layers of gooey cheese, juicy beef, sweet onions, and buttery bread.
Chef Jenn’s Tips
- Rye bread adds a classic deli-style flavor, but sourdough gives you that next-level crunch.
- Low and slow is the way to go when caramelizing onions. Don’t rush or you’ll miss out on their sweetness.
- Lightly pressing the sandwiches with a spatula while grilling helps create that perfect crispy crust.
Recommended
Make It a Meal
Serve with hot, crispy fries or onion rings, plus a dill pickle on the side for that classic diner vibe. Coleslaw or a light green salad makes a great fresh pairing too. Don’t skip the extra sauce for dipping; it’s worth it.
Storage
Wrap leftover patty melts in foil or place in an airtight container and store in the fridge for up to 2 days. Reheat in a skillet or toaster oven to bring back the crisp. Both the caramelized onions and burger sauce can be made ahead of time and stored in the fridge for up to 3 days.
Beefy Patty Melt
Ingredients
For the Patty Melts
- 1 pound ground beef
- 8 slices rye or sourdough bread
- ¼ cup butter softened
- 4 slices provolone cheese
- 4 slices cheddar cheese
- 1 tablespoon yellow mustard
- 2 teaspoons Worcestershire sauce divided
- ½ teaspoon garlic powder
- ½ teaspoon salt
- ¼ teaspoon black pepper
For the Caramelized Onions
- 2 cups onions thinly sliced
- 1 tablespoon balsamic vinegar
- 4 tablespoons butter
For the Burger Sauce
- ¼ cup mayonnaise
- 1 tablespoon dill pickle relish
- ¼ cup ketchup
- 2 teaspoons yellow mustard
Instructions
- Caramelize the onions. Melt butter in a skillet over medium-low heat. Add onions and cook for 25–30 minutes, stirring occasionally, until deeply golden. Stir in balsamic vinegar at the end.
- Make the sauce. Combine mayonnaise, pickle relish, ketchup, and mustard in a bowl. Cover and refrigerate.
- Shape the patties. In a bowl, mix ground beef with Worcestershire, garlic powder, salt, and pepper. Form into 4 oval patties to fit the bread.
- Cook the patties. Heat a skillet over medium heat and cook patties for 3–4 minutes per side. Top with provolone and cheddar to melt during the last minute.
- Assemble. Butter one side of each bread slice. Spread sauce on the unbuttered sides of 4 slices. Layer with a cheesy patty, caramelized onions, and another slice of bread, buttered side out.
- Grill. Wipe out the skillet, heat over medium, and grill each sandwich for 2–3 minutes per side until golden, crisp, and melty. Serve hot with extra sauce and pickles.
Notes
Chef Jenn’s Tips
- Rye bread adds a classic deli-style flavor, but sourdough gives you that next-level crunch.
- Low and slow is the way to go when caramelizing onions—don’t rush or you’ll miss out on their sweetness.
- Lightly pressing the sandwiches with a spatula while grilling helps create that perfect crispy crust.
Nutrition
A Note on Nutritional Information
Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed.