A sharp, two-ingredient refresher that proves vodka's best talent is disappearing into fresh citrus. Grapefruit juice provides bitterness and brightness; the vodka simply delivers it efficiently.

• Vodka5 cl
• Fresh grapefruit juice10 cl

1. 1Fill a rocks glass with ice.
2. 2Pour in the vodka and grapefruit juice.
3. 3Stir gently.
4. 4Garnish with a grapefruit wheel.