Ingredients

  • 3/4 cup sliced cucumber
  • Inner core of celery, both leaves and stalks, chopped (about 3/4 cup)
  • 1/4 cup pepperoncini, sliced
  • 1/4 cup parsley leaves, roughly chopped
  • Pinch of sugar
  • Kosher salt and freshly ground black pepper
  • 1 pound ground beef sirloin
  • 4 brioche hamburger buns, split
  • 4 tablespoons softened butter
  • 4 slices Havarti
  • Chips or salad for serving, if desired

Method

  • Preheat grill to medium-high. Combine cucumber, celery, pepperoncini, and sugar in a medium bowl; season with salt and pepper and toss to combine. Form beef into 4 patties, then season them generously with salt and pepper. Spread inside of buns with butter.
  • Add patties to grill. For medium-rare burgers, grill patties, uncovered, for 4 minutes; add cheese and grill for 4 to 5 minutes more. Transfer burgers to a plate. Add buns, buttered-side down, to grill until charred, about 1 minute. Sandwich the burgers in the buns and top with celery slaw. Serve with chips or salad, if desired.