Lind, from Ben & Jerry’s, agrees that anything with peanuts or peanut butter underwhelms ice cream fans in other countries—especially in Europe, where hazelnuts are the utility player of nuts. This summer, his company is sponsoring a global contest, called Do the World a Flavor, where people can suggest new, locally inspired flavors. “We’re looking for flavors that will appeal to all of these countries, and it’s surprising how few flavors are really popular everywhere,” Lind says. In Scandinavia, fans have suggested one of their favorites: salty licorice, which adds the faint but horrifying aroma of ammonia to an otherwise unsuspecting scoop of vanilla.