Pour 3 ounces sparkling wine into a Champagne flute. Combine sloe gin, juice, and absinthe in a martini shaker with ice. Add 1 1/2 teaspoons simple syrup. Shake. Strain into flute; top with bitters.
Absinthia Absinthe Verte Classic absinthe with rich, herbal notes EIGHT GOLD MEDALS, SUNSET MAGAZINE LIQUOR OF THE YEAR, 95 POINTS