LAS VEGAS, NV - APRIL 29: Negra modelo ice cream sandwiches are served at the Border Grill booth during Vegas Uncork'd by Bon Appetit presented by Chase Sapphire Preferred 10th anniversary Grand Tasting at Caesars Palace on April 29, 2016 in Las Vegas, Nevada. (Photo by David Becker/Getty Images for Vegas Uncork'd by Bon Appetit)