To prepare ginger syrup, place sugar, grated ginger, and water in a medium saucepan; bring to boil. Reduce heat to low and simmer for 1 hour until ginger flavor is strong. Strain mixture and refrigerate to chill.
To prepare Ginger-Apple Sparkler, place one tablespoon ginger syrup in each glass (use short tumblers).
Fill with ice cubes, pour in 1/2 cup cider and stir to combine.
Garnish with cinnamon stick and crystallized ginger.