Like grilled cheese? Got $100 to burn? Chicago's Deca Restaurant + Bar has got just the sandwich for you, notes Eater. It's the "Zillion Dollar Grilled Cheese" with ingredients that include 40-year aged Wisconsin cheddar infused with 24-carat gold flakes and black Iberico ham from pigs that feasted on acorns in the pastures of southern Spain, explains DNA Info. And then, of course, there's the foie gras, white truffle aioli, and the side of lobster mac and cheese. It's only available this month, which happens to be National Grilled Cheese Month.