Craving a hamburger, fried chicken and bacon all at once? KFC's Zinger Double Down<strong> </strong>has you covered. The hamburger topped with bacon, barbecue sauce and "pepper dressing" sandwiched between two pieces of crispy fried chicken, um, doubles down on the fast-food chain's success with the original 2010 Double Down, pictured, a sandwich of bacon, cheese and the Colonel's sauce between two chicken fillets.  