In a glass shaker, add gin, honey syrup (dissolved honey in equal parts hot water), lemon juice and grapefruit bitters. Add ice and shake vigorously.
Double strain into a Collins glass.
Add a few ice cubes to the glass. Top up with beer.
To garnish: zested peel of a grapefruit.
Twist the peel over the top of the drink to release the oils, garnish with the peel.
- 1 cocktail