In a saucepan combine the water and sugar. Place over high heat and bring to a simmer. Stir occasionally to completely dissolve the sugar. After that, add the dried sweet woodruff and let simmer for another minute. Then, remove from the heat, cover, and let steep for 20-30 minutes.
Strain the syrup through a fine mesh strainer. The dried sweet woodruff might have small particles that pass through the strainer. If that is the case, then pour the syrup through a coffee filter. This will remove any tiny specks and create a clear syrup.
Let cool before using. The syrup will keep for 2 to 3 weeks in the fridge.
Lady of the Lake Cocktail
In a cocktail shaker add the gin, green chartreuse, sweet woodruff syrup, lemon juice, and grapefruit bitters. Add ice, then cover and shake for 10 to 15 seconds. Strain into a coupe glass. Garnish with fresh flowers if desired and enjoy!