Using a peeler, remove the peel from the orange, lemon, and lime
Add all ingredients except the sparkling water to a small to medium sized pot
Bring everything to a boil over medium high heat
Turn the heat down to maintain a simmer for 15 minutes
Turn off the heat and let cool for 15 minutes
Strain the syrup through a fine mesh strainer into a jar
Pour about ¼-⅓ cup of syrup over ice and top with sparkling water
Stir to combine
Add freshly squeezed lime juice on top
