01 -
Combine turbinado sugar, grapefruit zest, and freshly grated nutmeg in a shallow dish, mixing thoroughly.
02 -
Rub a wedge of grapefruit along the edge of a highball glass, then gently dip and twist the rim into the sugar mixture to create an even decorative coating.
03 -
Fill the prepared glass three-quarters full with ice cubes.
04 -
Pour pomegranate juice and grapefruit juice into the glass over the ice, then top with ginger beer.
05 -
Stir gently to combine ingredients. Garnish with pomegranate arils and a sprig of fresh rosemary. Serve immediately while cold.