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Smash Burgers With Caramelized Onions

This ultimate smash burger recipe is layered with crispy beef patties, gooey cheese, tangy burger sauce, and sweet caramelized onions all nestled inside a perfectly toasted bun. Ideal for an indulgent weekend treat.
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Ingredients
  

For the Burger Patties

  • 1½ pounds 80/20 ground beef formed into loose 3-4 oz balls
  • Salt and black pepper to taste
  • 4 slices American cheese or cheddar

For the Buns & Toppings

  • 4 brioche or potato burger buns
  • Dill pickle slices
  • 1 large yellow onion thinly sliced

For the Caramelized Onions

  • 1 tablespoon butter
  • 1 tablespoon olive oil
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon balsamic glaze
  • Pinch of salt

For the Burger Sauce

  • ½ cup mayonnaise
  • 2 tablespoons ketchup
  • 1 tablespoon yellow mustard
  • 1 tablespoon dill pickle juice
  • 1 teaspoon paprika
  • Dash of hot sauce optional

Instructions
 

  • Sauté sliced onions with butter, oil, and salt over medium heat for 10–15 minutes until golden. Add Worcestershire and balsamic glaze, cook 2–3 more minutes, then set aside.
  • Mix mayo, ketchup, mustard, pickle juice, paprika, and hot sauce (optional). Chill until ready.
  • Preheat griddle to 450–500°F. Form loose beef balls, smash on hot surface, season, and cook 1½–2 minutes until crisp edges form.
  • Flip, add cheese, and cook 1 minute more. Toast buns cut-side down until golden.
  • Layer bottom bun with pickles, patty, onions, and top bun with sauce. Serve hot and enjoy!