Smashing Patty Melts with Sauce

Featured in Must-Have Toppings.

Enjoy a mouthwatering blend of crispy smashed beef patties, golden caramelized onions, and melted Swiss or cheddar cheese all layered between slices of toasted rye or sourdough. The zesty signature sauce adds a tangy kick, making each bite rich and satisfying. Perfect for a hearty lunch or casual dinner, these melts combine classic diner flavors with homemade comfort. Easy to prepare in just 25 minutes and great for feeding a crowd, serve hot with extra sauce or a side of pickles for a truly irresistible meal.

Casey
Updated on Wed, 25 Jun 2025 22:57:22 GMT
A sandwich with meat and cheese. Pin it
A sandwich with meat and cheese. | yummyflavorsrecipes.com

Patty melts have become my go-to meal whenever I want something that checks all the comfort boxes crisp buttery bread juicy beef sweet caramelized onions gooey cheese and a tangy special sauce. These are simple to pull together but never fail to wow at the table

My family first requested these on game night and now they beg for them every Friday We always end up fighting over the last sandwich so I double the batch when friends come over

Ingredients

  • Ground beef with twenty percent fat: gives you juicy patties look for freshly ground meat
  • Rye bread or sourdough: delivers sturdy slices with a rich flavor check for fresh bakery loaves
  • Swiss or cheddar cheese: both melt beautifully and bring sharpness or nutty notes choose high quality deli slices
  • Onion: adds sweetness and richness to the melts yellow onions caramelize best
  • Butter: creates crisp golden outsides and deep flavor opt for unsalted so you can control the seasoning
  • Mayonnaise: forms the base of the signature sauce choose a creamy full fat type
  • Ketchup: brings tang and sweetness to the sauce use your favorite brand
  • Dijon mustard: layers in sharpness and depth
  • Pickles or relish: offer crunch and a burst of brightness look for crisp well brined pickles
  • Garlic powder: infuses the sauce with subtle savory notes
  • Smoked paprika: enhances the sauce with a smoky dimension opt for Spanish smoked paprika if possible
  • Salt and black pepper: balance and sharpen every flavor

Step-by-Step Instructions

Make the Signature Sauce:
Stir mayonnaise ketchup Dijon mustard pickles garlic powder smoked paprika salt and pepper in a small bowl Mix until smooth and well combined Cover and chill in the fridge so the flavors meld while you cook
Caramelize the Onions:
Melt butter in a skillet over medium heat Once hot add sliced onions Cook slowly stirring often for about eight to ten minutes The onions should turn soft and golden brown without burning Remove from the skillet and set aside for assembly
Smash the Patties:
Divide your ground beef into four balls Heat a heavy skillet or griddle over medium high so it gets very hot Place each beef ball on the hot pan and press firmly with a spatula until they are thin Beef should sizzle season with salt and pepper Let them cook for two to three minutes until you get crispy browned edges Flip and cook another two minutes Remove from the skillet and prepare to build your sandwiches
Assemble the Patty Melts:
Butter one side of each slice of bread Lay half the slices butter side down on your work surface Spread a generous layer of the chilled signature sauce on each Now layer with a slice of cheese one beef patty caramelized onions a second slice of cheese and top with another slice of bread butter side up
Grill the Melts:
Wipe out your skillet or griddle then place it over medium heat Slide each sandwich into the pan and press slightly Cook for three to four minutes per side until golden brown and crisp with cheese thoroughly melted inside Watch carefully so the bread does not burn Flip and brown the other side evenly Remove and let rest for a minute so the cheese sets up a bit
Serve:
Slice each patty melt in half Serve hot with an extra helping of the special sauce on the side and crunchy pickles if you like
Delicious patty melt on a plate with caramelized onions cheese and special sauce Pin it
Delicious patty melt on a plate with caramelized onions cheese and special sauce | cookingwithcasey.com

Caramelized onions are my personal favorite in these melts My son even insisted we add them the first time we made this recipe and now it is our signature family touch Each bite reminds me of grilling these in the backyard on late summer nights

Storage Tips

Let leftovers cool completely Wrap sandwiches tightly in foil and keep them in the fridge for up to two days For best results reheat on a skillet to restore the crispy crust Do not microwave or bread may get soggy The signature sauce keeps well in an airtight container for about five days so make extra for dipping

Ingredient Substitutions

You can swap ground turkey or chicken for beef but add a little oil so the patties stay juicy If you do not have rye bread sourdough or hearty white sandwich bread work just as well Any melty cheese such as Havarti muenster or provolone can stand in for Swiss or cheddar For the sauce you can use yellow mustard if you are out of Dijon

Serving Suggestions

Pair your patty melts with classic dill pickles crispy fries or a simple green salad For a twist try sweet potato fries on the side For extra zing scatter sliced jalapenos or red onion right onto the sandwich The sauce also doubles as a fry dip

Cultural and Historical Context

Patty melts have roots in American diners emerging in the mid twentieth century With their crisp buttery exterior and cheesy meaty filling they bridge the gap between burgers and grilled cheese sandwiches They are a symbol of satisfying old school comfort food enjoyed from family kitchens to roadside diners

Frequently Asked Questions

→ What type of bread works best?

Rye bread gives a classic, robust flavor, but sourdough offers a delicious tangy alternative for the melts.

→ How do I get crispy edges on the patties?

Smash ground beef balls flat in a hot skillet and let them cook undisturbed to get those signature crispy edges.

→ Can I make the signature sauce ahead of time?

Yes, the sauce can be mixed and refrigerated up to 2 days in advance, allowing flavors to meld beautifully.

→ What cheese pairs well with this dish?

Swiss or cheddar cheese provide melty richness and balance the tangy sauce and savory patties perfectly.

→ Can caramelized onions be prepared earlier?

Definitely! Cook onions ahead and cool, then gently reheat before assembling the patty melts.

Smashing Patty Melts Signature Sauce

Crispy beef melts layered with tangy sauce, Swiss cheese, and caramelized onions on toasted bread.

Prep Time
10 Minutes
Cook Time
15 Minutes
Total Time
25 Minutes
By: Casey


Difficulty: Easy

Cuisine: American

Yield: 4 Servings (4 patty melts)

Dietary: ~

Ingredients

→ Patty Melts

01 450g ground beef (80/20 blend)
02 Salt, to taste
03 Freshly ground black pepper, to taste
04 8 slices rye bread or sourdough
05 8 slices Swiss or cheddar cheese
06 1 large onion, thinly sliced
07 2 tablespoons butter (for sautéing onions)
08 2 tablespoons butter (for grilling sandwiches)

→ Signature Sauce

09 120ml mayonnaise
10 2 tablespoons ketchup
11 1 tablespoon Dijon mustard
12 1 tablespoon finely chopped pickles or relish
13 0.5 teaspoon garlic powder
14 0.5 teaspoon smoked paprika (optional)
15 Salt, to taste
16 Freshly ground black pepper, to taste

Instructions

Step 01

In a small bowl, combine mayonnaise, ketchup, Dijon mustard, pickles or relish, garlic powder, smoked paprika, salt, and black pepper. Mix thoroughly and refrigerate until ready to use.

Step 02

Heat 2 tablespoons butter over medium heat in a skillet. Add sliced onions and sauté, stirring frequently, until deeply caramelized and golden brown, about 8 to 10 minutes. Remove onions from the skillet and set aside.

Step 03

Divide ground beef into four equal portions and shape into balls. Heat a skillet or griddle over medium-high heat. Place each beef ball onto the hot surface, press flat with a metal spatula, and season with salt and black pepper. Cook for 2 to 3 minutes per side until browned and edges are crisp.

Step 04

Butter one side of each bread slice. Arrange four slices, buttered side down, on a clean surface. Spread a layer of Signature Sauce on each slice. Top with a slice of cheese, a cooked beef patty, an even layer of caramelized onions, another slice of cheese, and cover with a second slice of bread, buttered side up.

Step 05

Heat a skillet or griddle over medium heat. Place assembled sandwiches onto the skillet and cook for 3 to 4 minutes on each side, pressing gently, until bread is golden brown and cheese has melted completely.

Step 06

Slice each melt in half and serve immediately with additional Signature Sauce or pickles on the side.

Notes

  1. Opt for rye bread for a classic robust flavor; sourdough provides a milder option.
  2. Press beef patties thin on a hot griddle for the ideal crispy crust.
  3. Prepare extra Signature Sauce to satisfy demand at the table.

Tools You'll Need

  • Large non-stick skillet or griddle
  • Spatula (metal recommended for smashing patties)
  • Mixing bowls
  • Knife and cutting board

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy (cheese, butter)
  • Contains gluten (bread)
  • Contains egg (mayonnaise)

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 786
  • Total Fat: 49 g
  • Total Carbohydrate: 41 g
  • Protein: 41 g