Sprinkle the sugar on a saucer. Rub the edges of the champagne glasses (or champagne flutes) with the halved lime and then dip into the granulated sugar. This results in a nice sugar rim.
Pour approx. 60 ml cranberry juice into each glass, top up the rest with champagne.
Attention: Both cranberry juice and sparkling wine should be ice-cold!
Pierce the cranberries with a toothpick and skewer two cranberries with a sprig of rosemary. Shorten the branch and place it across the glass.