• 45 ml/1.5 oz Drumshanbo Gunpowder Irish Gin
• 120 ml/4 oz Tonic Water
• Fresh red grapefruit wedge
• Ice cubes

Method:

Fill a highball glass with ice cubes.
Pour the gin over the ice.
Top up with tonic water.
Stir gently.
Garnish with red grapefruit wedge.