Hangar One California Cocktail Contest: SF - Vernal Equinox Elixir

2 oz Hangar One Vodka Kaffir Lime
1 oz minted vinegar syrup
0.25 fresh lemon juice
0.5 oz sparkling wine
garnish: cucumber wheel w/ mint sprig

Shake all the ingredients, add sparkling wine, rim cocktail glass w/ sumac and sugar. Strain drink into glass & drop in cucumber mint wheel