This drink tasted vegetal, pungent, and even slightly briny to me at first, but wasn't dark enough to merit the name "The Briny Deep". I think I'll have to make something befitting that before long, but for now:
1 1/2 oz aquavit (I absolutely love North Shore, but use Linie if you can't find that)
1 1/2 oz dry vermouth (Dolin in this case)
1/2 oz persimmon syrup
4 dashes orange bitters
Stir in a rocks glass over ice and top with a dash of soda water. Stir again and garnish with an orange twist.