Invented by Sam Ross at Milk & Honey in New York in 2005, the Penicillin is a modern classic — blended Scotch with honey-ginger syrup, lemon juice, and a float of peaty Islay whisky.

• Blended Scotch whisky5 cl
• Fresh lemon juice2.5 cl
• Honey-ginger syrup2.5 cl
• Peaty Islay single malt (float)1 cl

1. 1Make honey-ginger syrup: simmer 3:1 honey to water with fresh ginger slices for 5 min, then strain.
2. 2Combine blended Scotch, lemon juice, and honey-ginger syrup in a shaker with ice.
3. 3Shake hard for 12 seconds.
4. 4Strain into a rocks glass over a large ice cube.
5. 5Float peaty Islay whisky on top by pouring over the back of a spoon.
6. 6Garnish with candied ginger on a skewer.