Set the mood for your Christmas festivities with this pretty and delicious Cranberry Rosemary Champagne Cocktail.  I used champagne, but Prosecco works just as well, or if you want an non-alcoholic version, use Pellegrino or Seltzer. Have a tray at the ready with a pitcher of the Cranberry Rosemary infused simple syrup, the Cranberry Rosemary