The gin and tonic is everyone's go to low-carb cocktail. This herbal gin and tonic is made with tarragon simple syrup and finished with a few drops of lavender bitters.
In a small pot, bring water to a boil.
Add sugar and dissolve.
Add tarragon and remove from heat. Let it sit for 20 minutes. Strain into a clean jar or bottle and chill until ready for use.
Fill a highball glass 2/3 of the way with ice.
Cut a slit into the lime wedge and place it on the rim of the glass. Run it around the rim of the glass, squeeze the lime wedge into the glass, and then throw it in.
Add tarragon simple syrup and gin and stir.
Add tonic, top with seltzer, and then finish with 4 dashes of lavender bitters. Stir once to blend flavors.
Garnish with a large sprig of fresh tarragon and serve.