On Top 5 Restaurants the hosts head to swanky RPM Steak for the 10-ounce rib eye “The Duke,” named for partners Bill and Giuliana Rancic’s son Duke. The meat is brushed with beef butter and spices and thrown into a charcoal grill. On Iron Chef Eats, Chicago chef and Iron Chef competitor Sarah Grueneberg heads to this steakhouse for their Dry-Aged Steakburger topped with cheddar and horseradish on an onion roll.