Before you hand out the drinks, save a little soda to make these delectable burgers. Cola—used in the meat mixture and brushed on during cooking—really sparks the flavor and takes this favorite to a whole new level. —Emily Nelson, Green Bay, Wisconsin
Optional toppings: Lettuce leaves and tomato and red onion slices
Combine saltine crumbs, 1/4 cup cola, 3 tablespoons salad dressing, egg, Parmesan cheese and 1/4 teaspoon salt. Add beef; mix well. Shape into six 3/4-in.-thick patties (the mixture will be moist); sprinkle with remaining salt. Combine remaining 1/4 cup cola and 3 tablespoons salad dressing.
Grill patties, covered, over medium heat 3 minutes per side. Brush with cola mixture. Grill, brushing and turning occasionally, until a thermometer reads 160°, 3-4 minutes longer. Serve on buns; if desired, top with lettuce, tomato and onion.