Peel and thinly slice 1 cup fresh ginger
Place ginger in a pot and cover with water
Bring to a boil, then simmer for 30 minutes
Drain the ginger and repeat boiling in fresh water 1 to 2 more times for a milder flavor
Combine 1 cup sugar and 1/2 cup water in a pot
Heat until the sugar dissolves and the syrup thickens slightly
Add the drained ginger slices to the syrup
Cook over low heat, stirring often, until the syrup is mostly absorbed
Remove the ginger pieces and place them on a wire rack or parchment paper
Toss the ginger in granulated sugar while still slightly sticky
Let the ginger candy dry completely before storing
Store in an airtight container