1 oz St. Germain Elderflower Liqueur 
1 oz Liquid Alchemist Passion Fruit Syrup
1/4 oz Lemon juice
4 oz Brut sparkling wine, chilled
Passion fruit seeds for garnish (optional)

In a cocktail flute, combine the Liquid Alchemist Passion Fruit Syrup with lemon juice. Add the sparkling wine and garnish with 5 or 6 passion fruit seeds reserved from the passion fruit simple syrup or from fresh passion fruit.