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Best Smash Burger Recipe (With Jalapeño Pimento Cheese)

Print Recipe
Prep Time 30 minutes
Cook Time 10 minutes
Servings 6

Ingredients

Smash Burger

  • 450 g 1 lb 80/20 ground beef
  • Salt to taste
  • Black pepper to taste
  • 1 leek sliced very thin (mandolin recommended)
  • 4 slices pepper jack cheese
  • 2 burger buns soft, potato or brioche

Jalapeño “Pimento” Cheese

  • Aioli Base
  • 2 egg yolks
  • 240 g 1 cup neutral oil (algae or any neutral oil)
  • 15 g 1 tbsp Dijon mustard

Mix-ins

  • 225 g 1 cup Beecher’s white cheddar curds (or any sharp white cheddar)
  • 225 g 1 cup pickled jalapeños (escabeche style preferred)
  • 8 g 1 tbsp garlic powder
  • 6 g 2 tbsp dried scallions (or 1 tbsp onion powder)
  • Salt to taste
  • Black pepper to taste
  • Pinch citric acid optional, but worth it

Instructions

  • Make the aioli by adding the egg yolks and Dijon mustard to a food processor. Blend briefly, then slowly stream in the oil while the processor runs until the mixture is thick, glossy, and fully emulsified.
  • Make the jalapeño cheese spread by adding the cheddar curds, pickled jalapeños, garlic powder, and dried scallions to a food processor. Pulse until the mixture is chunky and spreadable, not smooth. Season with salt, black pepper, and a pinch of citric acid if you want a brighter flavor.
  • Portion the ground beef into 4-ounce balls. Keep the meat loose and do not overwork it so the smash burgers stay tender.
  • Heat a flat top or cast iron skillet over high heat. Place a beef ball on the hot surface, cover with parchment paper, and smash as thin as possible. Remove the parchment right away, then top with thinly sliced leeks, salt, and black pepper.
  • Cook the smash burger until a deep crust forms on the bottom. Flip once, then top with pepper jack cheese. Cover with a bowl or lid for 30 to 60 seconds to help the cheese melt.
  • Toast the burger buns until golden. Spread the jalapeño cheese mixture on the bottom bun, then layer with one patty, more cheese spread, the second patty, more cheese spread, and the top bun.
  • Serve immediately while the smash burgers are hot, crispy, and the cheese is fully melted.

Video

Notes

For the best smash burger results, use 80/20 ground beef. Leaner blends won’t develop that deep, crispy crust. Once you smash the patty, leave it undisturbed so it can properly sear and build flavor.
Season the beef after smashing, not before. This helps the salt stay on the surface and enhances the crust instead of drawing out moisture too early.
Always go for a double stack. The balance of crispy edges, melted cheese, and juicy interior is what makes this style of burger hit.
And don’t worry about keeping it clean. A proper smash burger should be a little messy. That’s how you know it’s done right.