How to Make It
Fill a cocktail shaker with ice. Add all of the remaining ingredients except the cava and shake well. Strain into a large chilled coupe and top with the cava.
Spiced Honey Syrup: Wrap 1/2 cinnamon stick and 2 green cardamom pods in a kitchen towel and crush with a mallet or heavy pan. In a small saucepan, combine 1/2 cup honey with 4 ounces water. Add 1 tablespoon chopped fresh ginger and the crushed spices and simmer over moderate heat, stirring frequently, until the syrup darkens and the spices are very aromatic, about 15 minutes. Let cool, then cover and refrigerate until chilled and infused, at least 8 hours. Pour the syrup through a fine strainer into a clean jar and refrigerate for up to 2 weeks. Makes about 6 ounces.