for the burger:
1 1/4 lb 90% lean ground beef
1/4 cup chopped "Hamburger" dill pickle chips*
1/2 medium onion, finely diced
2 tablespoons horseradish deli mustard
1 tablespoon Worcestershire sauce
4 slices Butterkäse cheese**
freshly ground black pepper.
4 pretzel rolls
horseradish deli mustard
"Hamburger" dill pickle chips
In a medium bowl, mix together all burger ingredients until they are evenly distributed. Firmly form into 4 even patties. Set aside.
Heat a small amount of oil in a large skillet. Cook the patties, flipping once, until cooked to desired doneness over medium heat. Drain, if needed, on a paper towel-lined plate. Place burgers on buns, top with additional mustard and pickles if desired. Serve immediately.
*find these pickle slices near other shelf-stable pickles on the grocery store shelf, these pickles give the burgers that classic burger taste so don't substitute fancy dill pickles or kosher dills.
**Find this German, smooth melting cheese at stores with a well-stocked cheese section or it is frequently available at Aldi. Gouda would make a good substitute in a pinch.