Ensure all liquid ingredients are well chilled before beginning. This makes a significant difference in the final quality.
Fill a large wine glass or balloon glass (12-14 oz capacity) with ice cubes, about ¾ full. Use large ice cubes if available for slower dilution.
Pour 1½ oz (3 tablespoons/45ml) of cranberry juice cocktail over the ice.
Add 1½ oz (3 tablespoons/45ml) of Wilderton Bittersweet Aperitivo over the cranberry juice.
Gently pour 3 oz (6 tablespoons/90ml) of chilled club soda over the other ingredients. Pour slowly to preserve carbonation.
Stir gently with a bar spoon 3-4 times to integrate ingredients without losing too many bubbles. Some beautiful color gradation should still be visible.
If using sugared cranberries, thread 3-5 onto a gold cocktail pick and rest across the rim of the glass or place in the drink.
Add a sugared rosemary sprig by tucking it into the ice or resting it against the rim of the glass. The garnish should look abundant and festive.
Serve immediately while cold and effervescent.