Ballet Russe

Pour the caster sugar into a shallow dish or saucer. Moisten the rim of a chilled cocktail glass by running the cut side of a lime wedge around the edge, then dip the rim into the sugar to coat evenly.

Combine the fresh lime juice, lemon juice, and crème de cassis in a cocktail shaker filled with ice. Stir gently to chill and combine the juices with the liqueur.

Add the Stolichnaya Red vodka to the shaker and fill with additional ice. Shake vigorously for 10-15 seconds until well chilled.

Strain the cocktail into the sugar-rimmed glass over fresh ice. Serve immediately and garnish with a lime wheel or twist if desired.