1sodasoda water for serving(about 5 ounces per drink)
1-2cucumber slices, for serving, optional
Place sliced cucumber and ginger in a large, heat-proof bowl. Bring sugar and water to a boil in a saucepan over medium-high heat, stirring until sugar is completely dissolved. Pour over cucumber and ginger and let stand for 2 hours.
Strain into a bottle and chill.
To prepare a cocktail, stir together about 1 shot syrup (1.5 ounces) with about 3 shots water (4.5 ounces), or to taste. Garnish with a cucumber slice.
Keeps in an air-tight container in the fridge for two weeks.