Genever is a clear distilled spirit from Holland that's typically made from a mixture of malted grains flavored with juniper (the key flavoring in gin). It's often compared to good single-malt whiskey. Pineapple gum syrup is available at smallhandfoods.com.
Sparkling Wine Cocktails
Fill a cocktail shaker with ice. Add the genever, lemon juice, gum syrup and cardamom pods and shake well. Strain into a chilled coupe and stir in the Prosecco and bitters.