Dissolve the sugar into the boiling water, stirring constantly.
Once the sugar is dissolved completely, remove the pan from the heat.
Allow to cool completely and thicken, then store in refrigerator for up to one week
In a martini shaker, add 1 cucumber slice and 1 mint leaf and crush with spoon. Add fresh ice vodka, lime juice and simple syrup. Shake vigorously and pour into a martini glass. Garnish with a cucumber slice and 1 mint leaf.