• 2 ounces of vodka
• 5 ounces of cranberry juice
• 1 1/2 ounces of fresh-squeezed grapefruit juice
• One packet of Equal
• Soda

1. Shake all of the ingredients, except the soda, with ice.
2. Pour into a highball glass.
3. Add soda to taste.
4. Garnish with a wedge of lime.

This classic thirst quencher comes from the beautiful book The Art of the Cocktail.