Ultimate Patty Melt Sandwich

Category: Satisfying Main Dishes for Every Occasion

Bite into a true comfort classic—thick grilled beef patties, rich onions slow-cooked until sweet, and a gooey mix of Swiss plus cheddar, tucked in rye and crisped up buttery and brown. Scoop up every last bit with a zesty sauce made from mayo, ketchup, relish, and a splash of Worcestershire. Let those onions get jammy by cooking them gently, and use a medium flame for the perfect crisp crust. Eat it while it’s hot for max flavor and coziness.

Barbara Chef
Updated on Fri, 30 May 2025 23:19:26 GMT
Loaded Patty Melt with Secret Sauce—Tastes Like a Diner Treat Pin
Loaded Patty Melt with Secret Sauce—Tastes Like a Diner Treat | cookwithcarla.com

Nothing hits the spot quite like a good old patty melt This comforting favorite piles juicy beef patties with two gooey cheeses sweet jammy onions and a zippy special sauce all wedged between crisp hot rye bread Each mouthful is a tasty combo of meat cheese zing and a bit of nostalgia The first time I cooked these up on a sleepy Sunday the smell had my family hanging out in the kitchen before I even finished Now they always ask for more

Thinking back to the first time I made these—those steamy windows in winter and my kids dancing around the stove The sauce is what gets all the hype at our house

Irresistible Ingredients

  • Ground beef: one pound juicy meat keeps things flavorful with a little fat pick a grind that’s not all lean for the best burgers
  • Onion: slice thin and cook slow for a sweet finish yellow onions are best pick the firm ones
  • Rye bread: need eight slices of sturdy rye that gives a crunchy crust hunt for one with caraway seeds if you can
  • Swiss cheese: four pieces melt super well and add a nutty bite try baby Swiss for the best texture
  • Cheddar cheese: four slices for sharp flavor choose a nice aged block but not too crumbly
  • Butter: spreadable and soft is key for grilling real butter gives the top-notch crunch and flavor
  • Salt and pepper: sprinkle these on to bring out the meat flavors try kosher for easy pinches
  • Mayonnaise: you’ll want half a cup for the creamy sauce full fat makes it smoother
  • Ketchup: two spoonfuls bring tang classic thick ketchup blends best
  • Sweet pickle relish: toss in a tablespoon for crunch and bright zip grab a cold jar for fresh flavor every time
  • Worcestershire sauce: use a teaspoon tiny bit goes a long way for umami in the sauce

Step-by-Step Game Plan

Make the Sauce First:
Whisk together the mayo ketchup relish and Worcestershire in a small bowl until it’s nice and creamy Pop the bowl in the fridge to chill and come together
Get Your Onions Caramelized:
Drop some butter in a big frying pan over medium Toss in all the onion slices Cook slow and steady stir now and again until they’re golden jammy and shrunken down—plan on twenty minutes If they darken too quick just drop the heat Slow cooking brings out way more sweetness
Form and Season Patties:
Split the ground beef into four Equal pieces Flatten them to fit your bread and gently press for even thickness Add salt and pepper right before putting them in the pan
Brown the Patties:
Heat up your pan on medium-high Cook the patties for three or four minutes each side Flip one time when there’s a good crust and a few juices appear Take them off and keep them covered
Build Your Sandwiches:
Butter one side of each rye slice Set four on the counter butter facing down Add Swiss first then a beef patty a pile of onions cheddar cheese and top with the last slices buttered side up
Grill ‘Em Up:
Move the stacked sandwiches to your skillet on medium Cook for a couple minutes per side with the spatula pressing down Flip and grill both sides till bread is crackly and cheese melts
Give ‘Em a Break and Serve:
Scoot the finished melts onto a board Rest a minute so they cut neatly Slice in halves or quarters to share Dig in right away and pile on that secret sauce
Homemade Patty Melt with Secret Sauce: Better Than the Diner Pin
Homemade Patty Melt with Secret Sauce: Better Than the Diner | cookwithcarla.com

How to Store Yours

Once your patty melts are cool wrap them tight in foil and pop in the fridge for up to two days Warm them back up in a pan over low so they crisp right up Try not to use the microwave unless you have to—the bread gets soggy Fast fact: that special sauce keeps in the fridge a week easy

Swap Your Ingredients

Want it lighter? Go with ground turkey or chicken Love plants? A veggie patty totally works Any melty cheese like havarti or provolone is a good sub Light rye or regular sourdough bread are both winners if rye isn’t your favorite

Serving Suggestions

Try them with chips pickle spears or a crunchy salad For the full diner feel grab some slaw or fries too They pack up great for road trips—just wrap in foil and wax paper

A Little Backstory

This classic first showed up in American diners in the 1950s smashing together a beef burger and a grilled cheese Sweet onions and rye bread made it a mainstay Loads of families get hit with that cozy nostalgia every time they make one

Recipe Questions & Answers

→ What's the secret for onions that turn out golden and rich?

Just take your time! Keep onions on a medium stove for up to 20 minutes, give them a stir here and there, and watch them go soft and sweet without burning.

→ Could I swap beef for something else?

Yep, go for turkey or ground chicken if you want. Watch the cook time since it might be a bit shorter. Give it a taste and tweak your spices to match.

→ Which bread is best for making this?

Classic rye holds up great and brings big flavor, but whole wheat or sourdough will work too. Pick your fave and toast away.

→ How do I get my cheese super melty?

Stack on thin cheese slices and pop a lid on your pan for a bit. Steam does the trick for melting without burning the toast.

→ Why let the sandwich chill before slicing?

Give it a quick rest so everything sticks together when you slice. That way, cheese and juices won’t run all over your plate right away.

Patty Melt

Golden rye packed with beef, melty cheese, buttery onions, and zippy sauce.

Preparation Time
15 mins
Cook Time
30 mins
Total Time
45 mins

Category: Main Dishes

Difficulty Level: Intermediate

Cuisine Type: American

Yield: 4 Servings (4 sandwiches)

Dietary Preferences: ~

What You'll Need

→ Beef Patties

01 455 g ground beef
02 Black pepper, to taste
03 Salt, to taste

→ Cheese & Bread

04 Butter, for grilling
05 4 slices cheddar cheese
06 4 slices Swiss cheese
07 8 slices rye bread

→ Caramelized Onions

08 1 large onion, sliced thin

→ Special Sauce

09 1 teaspoon Worcestershire sauce
10 1 tablespoon sweet pickle relish
11 2 tablespoons ketchup
12 120 ml mayonnaise

Steps to Follow

Step 01

Dump mayonnaise, ketchup, relish, and Worcestershire into a small bowl. Stir them together till creamy. Set it aside while you prep the rest.

Step 02

Heat some butter in a big skillet over medium. Drop in the onion slices and cook them gently, giving them a stir every now and then, until they turn dark golden and taste sweet. This takes about 15 minutes. Take them off the heat when they're done.

Step 03

Split the beef into 4 chunks and smash them into thin patties. Season each one with salt and plenty of black pepper on both sides.

Step 04

Throw the patties into the pan on medium-high. Give them 3 or 4 minutes, then flip and cook the other side until they're nicely browned and cooked through. Move them to a plate when done.

Step 05

Spread butter on one side of your bread slices. Lay half, butter-side down, in your clean skillet. Put Swiss cheese, beef patty, onions, and then cheddar cheese on each. Top off with another slice of bread, buttered side facing up.

Step 06

Grill the built sandwiches over medium. Cook both sides, squishing a bit with your spatula, till the outside is crisp and cheese is gooey, about 2-3 minutes per side.

Step 07

Let 'em sit for a minute before you slice. Serve hot, with a side of that creamy sauce.

Additional Notes

  1. Want them lighter? You can swap in chicken or turkey patties.
  2. Be patient with those onions—the longer they cook, the sweeter and richer they get.
  3. Don’t crank up the heat on your pan or the bread will burn before the cheese melts.

Tools You'll Need

  • Big skillet
  • Small bowl for mixing
  • Spatula

Allergy Information

Check every ingredient for potential allergens. Consult a healthcare professional for concerns.
  • Has wheat, eggs, dairy, and maybe soy—scan all your labels to make sure.

Nutrition Info (Per Serving)

These details are for informational purposes and don’t replace medical advice.
  • Calories: 650
  • Fats: 42 g
  • Carbohydrates: 35 g
  • Proteins: 38 g