Place an ice sphere into the rocks glass
Place 3 cucumber slices, 5 mint leaves into a shaker and muddle
Pour in 0.35 oz of lemon juice, 0.35 oz of sugar syrup and 2 oz of aged bourbon
Fill the shaker with ice cubes and shake
Finely strain into the rocks glass
Top up with ginger beer and gently stir
Garnish with a mint sprig, a cucumber slice and a teaspoon