Ingredients: - 2 sesame seed buns - 1/4 pound ground beef (for each patty) - 1/8 cup onions (finely chopped) - 3 slices American cheese (for each burger) - 1 tablespoon ketchup - 1 tablespoon special sauce - Shredded iceberg lettuce - Dill pickle chips Preparation method: 1. Prepare the ground beef patties by dividing them into two equal portions, shaping them into round and flat discs that fit the buns. Season each patty with a pinch of salt and pepper. 2. Cook the patties on a hot grill or skillet until well-done, about 4 minutes per side. Add the chopped onions to the pan during the last minute of cooking to caramelize them slightly. 3. While the burgers are cooking, toast the sesame seed buns under a broiler or in a toaster oven. 4. Assemble the burgers by layering one patty on each bun, followed by ketchup and special sauce (which is a mixture of mayonnaise, sweet pickle relish, yellow mustard, white vinegar, garlic powder, and sugar). 5. Add shredded lettuce to both burgers, then place three slices of American cheese on top of each patty. Top with the second patty, pressing down gently so that the cheese melts between the layers. 6. Complete each burger by adding dill pickle chips and placing the top half of the bun on top. Serve immediately.