Berry Cosmopolitan Cocktail: Is there anything more festive than a Cosmopolitan martini drink with a berry juice base? (Not really.) This very berry cosmo is easy to make (and easy to enjoy, so be careful - because they're a little strong). Want to learn how to rim your glasses with sugar (to make it festive for Christmas or other holidays?) Click on the photo to go to our recipe blog, where we have an easy to follow DIY tutorial with photos.