- 1 (1.5 fluid ounce) jigger blackcurrant vodka
- 1 (1.5 fluid ounce) jigger creme de cassis liqueur
- 1/2 cup pink grapefruit juice
- 1 cup crushed ice
- Combine vodka, cassis, pink grapefruit juice, and ice in a shaker. Shake vigorously, and strain into a martini glass.