Cranberry Elderflower Cocktail

Zest 0.5 of the lime (1) into a small bowl and combine with sugar (1 tbsp), rubbing the sugar and zest together with your fingers until fragrant. Sprinkle onto a small plate. Cut the lime (1) into wedges, then use one to wet the edge of the serving glass. Gently tap the edge of the glass into the sugar, coating well. Set aside.

Fill a cocktail shaker with [ice cubes]. Add vodka (2 ounces), elderflower liqueur (1 ounce), cranberry juice (1 ounce), and lime juice (0.5 ounce). Shake vigorously to combine and strain into the prepared glass. Garnish with a [lime wedge] and [frozen cranberries] and serve.