The most popular soft drink in Sweden during the Christmas season is Julmust. Created by Swedish chemist Harry Roberts as a non-alcoholic beverage option, the drink tastes like a mixture of cola and root beer or, some say, like cola and apple juice. To this day, the Roberts company remains the only source of the authentic Julmust syrup whose recipe remains a secret.
So dominant is Julmust's hold on the Christmas soft drink market that both Coca Cola and Pepsi have tried to market their own versions with scant success.