Combine water, sugar, and cinnamon sticks in a small saucepan
Bring to a boil, then reduce heat and simmer for 10 minutes
Remove from heat and let cool completely
Strain and store in an airtight container
Mix the mocktail:
Fill pitcher with ice
Pour in cranberry juice and lime juice
Add cinnamon simple syrup
Stir well to combine
Serve:
Fill glasses with ice
Pour mixture into glasses, leaving room for sparkling water
Top with sparkling water
Garnish with fresh cranberries and cinnamon sticks
Notes
Store leftover cinnamon simple syrup in the refrigerator for up to 2 weeks.Make a big batch for parties by doubling or tripling the recipe.For a less sweet version, reduce the amount of simple syrup or use unsweetened cranberry juice.Keep sparkling water separate until serving to maintain carbonation.