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Crispy Blackstone Smash Burgers Recipe Easy Homemade with Caramelized Onions

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A quick and easy smash burger recipe cooked on a Blackstone griddle, featuring juicy beef patties with a crispy crust topped with sweet caramelized onions. Perfect for casual gatherings or a satisfying weekday dinner.

Ingredients

Scale
  • 1 pound (450g) ground beef (80/20 blend recommended)
  • 2 medium yellow onions, thinly sliced
  • Salt and pepper to taste (coarse kosher salt and freshly cracked black pepper recommended)
  • Cheese slices (optional; American, cheddar, or favorite melting cheese)
  • 1 tablespoon butter or oil (unsalted butter preferred for caramelizing onions)
  • 4 sturdy burger buns, lightly toasted (brioche or potato buns recommended)
  • Condiments (optional; mustard, mayo, ketchup, pickles)

Instructions

  1. Thinly slice 2 medium yellow onions and set aside.
  2. Heat 1 tablespoon butter or oil on the Blackstone griddle over medium-low heat. Add onions and a pinch of salt. Stir occasionally for 20-25 minutes until golden brown and sweet.
  3. Divide 1 pound ground beef into 4 equal portions (about 4 ounces or 115g each). Gently form loose balls without overworking the meat.
  4. Preheat the griddle to medium-high heat until a drop of water sizzles instantly.
  5. Place one ball of beef on the griddle. Using a spatula or burger press, smash it down firmly until about 1/4 inch (6 mm) thick. Repeat with remaining portions, leaving space between patties.
  6. Immediately season the exposed side with salt and pepper. Cook for 2-3 minutes without moving to develop a crispy crust.
  7. Flip the patties carefully. Add cheese slices if using. Cook another 1-2 minutes until cheese melts and burger reaches desired doneness (medium recommended).
  8. While burgers cook, toast buns cut-side down on the griddle edges for 1-2 minutes until golden and slightly crisp.
  9. Assemble burgers by placing patties on buns, topping with caramelized onions, and adding condiments as desired. Serve immediately.

Notes

Do not overwork the meat to keep patties tender. Smash the patties quickly and firmly for a crispy crust. Keep heat medium-low when caramelizing onions to avoid burning. Avoid pressing patties after flipping to retain juiciness. Caramelized onions can be made ahead and stored in the fridge for better flavor.

Nutrition

Keywords: smash burgers, Blackstone griddle, caramelized onions, homemade burgers, quick dinner, crispy burgers, easy burger recipe

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