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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
5 from 1 vote

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?).