Price includes one Stackburger, choose a double or triple. A double stack (1/3lb*) or triple stack (1/2lb*) of 100% seasoned real beef patties piled high with melty Sharp American**, crispy golden onion rings, Applewood-smoked bacon, and a delicious duo of tangy A.1.® Thick and Hearty Steak sauce and creamy peppercorn sauce on a soft and toasted bun.