It's still rare to come across fresh jackfruit in the Western world, but you can occasionally spot it in the produce section at Asian food stores or health food stores like Whole Foods. For tinned varieties look in Aldi, Lidl, Sainsbury's, Tesco, Asda, Morrisons and Waitrose. In addition, Ocado also sells a good variety of tinned jackfruit, so be sure to check them out online.