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Beef RecipesAmerican CuisineEasyUnder 30 Mins

Classic Homemade Smash Burgers with Special Sauce

Lacy, ultra-crispy caramelized beef edges with gooey melted American cheese, crisp pickles, and our famous tangy burger sauce on toasted brioche buns. Better than Shake Shack!

Chef Marcus Vance
By Chef Marcus VanceTest Kitchen Director
Published Sep 25, 2026•
4.97(388 reviews)
Classic Homemade Smash Burgers with Special Sauce
Double smash patty burger layered with melted American cheese, shredded lettuce, and special sauce on shiny brioche.Photo: YumLovers Burger Lab / Marcus Vance
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Prep Time15 mins
Cook Time10 mins
Total Time25 mins
Servings4 double-patty smash burgers
YumLovers Tested Kitchen Card

Classic Homemade Smash Burgers with Special Sauce

American•Easy•650 kcal per serving
Servings:
4
Units:

Ingredients

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  • 1.5 lbs80/20 ground chuck beef(fresh, not pre-pressed)
  • 8 slicesyellow American cheese
  • 4 bunsbrioche hamburger buns(split and buttered)
  • 1 smallyellow onion(shaved paper-thin)
  • 16 slicesdill pickle chips
  • 2 tbspunsalted butter
  • 1 tspkosher salt
  • 0.5 tspcoarse black pepper
  • 0.33 cupmayonnaise(for special sauce)
  • 2 tbspyellow mustard(for special sauce)
  • 2 tbspketchup(for special sauce)
  • 1 tbspsweet pickle relish(for special sauce)
  • 0.5 tspwhite vinegar(for special sauce)
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Step-by-Step Instructions

  1. 1

    Make Special Sauce: Whisk mayonnaise, mustard, ketchup, sweet relish, and white vinegar in a bowl. Cover and chill in the fridge until ready to assemble.

    Chef's Secret: Making the sauce ahead lets the flavors meld together into that classic diner taste.
  2. 2

    Divide ground beef into 8 loose, round meatballs (approx 3 oz each). Do NOT pack or overwork the meat. Keep chilled until the exact second they hit the skillet.

    Chef's Secret: Cold fat meets screaming hot iron to produce the Maillard reaction crust.
  3. 3

    Toast the buns: Melt butter in a wide cast iron skillet or flat griddle over medium heat. Toast split brioche buns cut-side down for 1-2 minutes until golden. Set aside on plates.

    Chef's Secret: Toasting the buns creates a barrier that keeps burger juices from turning the bread soggy.
  4. 4

    Turn heat up to high until skillet is lightly smoking. Place 2 to 4 beef balls in the pan. Immediately place a small square of parchment paper over each ball and press down hard with a heavy burger press or stiff spatula until paper-thin with ragged lacy edges.

    Chef's Secret: Parchment paper prevents the meat from sticking to your metal press!
  5. 5

    Remove parchment, scatter shaved onions over the raw side, and season heavily with salt and pepper. Cook undisturbed for 2 minutes until the edges are deep caramelized brown and crispy.

    Chef's Secret: Do not touch them for 2 full minutes to lock in that crunchy lace.
  6. 6

    Use a sharp metal spatula to scrape under the crust in one firm stroke. Flip the patty, top immediately with a slice of American cheese, and cook for 1 more minute until cheese melts. Stack two patties together, transfer to toasted buns slathered with special sauce and pickles, and devour!

    Chef's Secret: American cheese melts with unmatched creaminess and binds the double patties together.

Estimated Nutrition (Per Serving)

Based on 4 servings
Calories650 kcal
Protein38 g
Carbs31 g
Fat42 g
Fiber2 g
Sugar6 g
Sodium890 mg

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Test Kitchen Tips

  • 80/20 beef chuck is mandatory—lean beef (90/10) lacks the fat necessary to fry and crisp the patty edges.
  • Shaving the onions paper-thin with a mandoline allows them to steam and caramelize right into the patty during the smash.

Storage & Reheating

Smash burgers are best served immediately hot off the griddle. Extra special sauce can be stored in a mason jar in the fridge for up to 2 weeks.

Related Tags:
#Burgers#Beef#Cast Iron#Diner Style#American#Crowd Pleaser

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