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Close-up of two bacon smash burgers on a toasted bun, topped with melted cheddar cheese, served on a white plate with a Blackstone griddle in the background. A metal spatula is lifting one of the burgers, showcasing the crispy bacon and juicy smashed beef patties.
Print Recipe

Bacon Onion Smash Burgers

Prep Time15 minutes
Cook Time25 minutes
Total Time40 minutes
Course: dinner
Cuisine: American
Keyword: blackstone griddle smashburger, griddle recipe
Servings: 4

Equipment

  • 2 Spatulas
  • 1 burger press

Ingredients

  • 1 lb ground beef 80/20 – divide into eight 2.5 oz balls
  • 8 slices bacon
  • 1 large onion thinly sliced
  • 6 slices American cheese
  • 4 Aunt Millie’s Stadium White Buns
  • Seasoned Salt or your favorite burger seasoning
  • 1 tablespoon butter for toasting buns optional
  • Your favorite burger sauce optional

Instructions

  • Start by heating the griddle to medium-low (300-350°F) and adding the onions and bacon. Cook until crispy, flipping as needed, then move it to a rack or plate, leaving some grease behind.
  • Toss the sliced onions into the bacon grease, sprinkle with brown sugar, and cook for 5-7 minutes, stirring occasionally until caramelized. Move them to a cooler side of the griddle.
  • Turn the burners to high and let the griddle reach 450-500°F. Once hot, place the beef balls 4-5 inches apart on the griddle. Smash each one as thin as possible using a burger press or two spatulas. If using spatulas, flip the ball first, then smash. Season immediately with seasoned salt.
  • Place the Aunt Millie’s Stadium White Buns directly in the bacon and burger grease to toast until golden brown.
  • Let the patties cook for about 90 seconds, then scrape and flip to reveal a crispy crust. Place American cheese on the patties, then stack the remaining patties on top to create doubles.
  • Assemble by stacking caramelized onions, a double smash burger, and crispy bacon between the toasted buns. Serve with a side of cheese balls (because why not?).