doughnut is vegan, Krispy Kreme UK wrote on its Instagram page.MCDONALD'S TO SELL KRISPY KREME DOUGHNUTS NATIONWIDEFans of Krispy Kreme and of the show took to social media to express their confusion at the release. "This is where I am just confused by the decision-making process. Friends was a huge U.S. show (I know it is big internationally as well, but come on), yet this is a UK thing," wrote one Instagram user in response to a post about the new doughnuts.