Step: 1
Begin by adding white sugar to a container of hot water, and stir the mixture until the sugar is fully dissolved.
Step: 2
Coarsely chop some ginger, and add it to a blender with some of the sugar syrup. Blend the mixture for two minutes, then strain the liquid through a sieve, wringing out the ginger pulp with your hands.
Step: 3
Heat some water on the stove, and add the mint leaves to blanch them for about 20 seconds. After blanching, transfer the mint to an ice bath for about a minute, then remove the mint and wring out any excess water.
Step: 4
Finally, blend some of the ginger syrup with the mint leaves for at least two minutes, until the liquid turns a vibrant green color and the mint leaves are finely chopped.
Step: 5
Mix the ginger and mint syrups together, and transfer the mixture into a clean, airtight container.