There was nothing to suggest that Nerds Gummy Clusters would be a success. But now, Americans can’t stop eating them. It’s one of the biggest hits in the candy aisle this Halloween—and easily the unlikeliest. 📷: Evan Angelastro for WSJ, Michelle Gustafon for WSJ, Ferrara Candy, Getty Images Reporter/Host: Ben Cohen Producer: @jacob.ohara #nerdsgummyclusters #nerds #candy #halloween #business #wsj