Glögi is nordic version of the typical German Christmas market´s hot drink Glühwein. It´s hard to imagine winter without this warming beverage. Rare chaga mushroom(Inonotus obliquus), that grows in cold climates on birch trees adds soft taste to it and is also known for its immune boosting properties.
Estonian version of mulled wine has usually blackcurrant juice in it but any other dark juice(blackberry, blueberry) would add great taste too.