Penicillin

The Penicillin is a modern “New Era” classic composed of Blended Scotch Whisky, Islay Single Malt Scotch, Fresh Lemon Juice, and Honey-Ginger Syrup. It is the most successful Scotch-based cocktail of the 21st century, celebrated for its therapeutic flavor profile—combining the warmth of ginger, the sweetness of honey, and the aromatic “smoke” of Islay peat.

Key Takeaways

• Alcoholic Base: A “dual-Scotch” strategy (Blended and Single Malt).
• Core Modifier: Honey-Ginger Syrup (house-made preferred).
• Technical Garnish: Islay Scotch float.
• Flavor Profile: Smoky, spicy, and warming.

History: Sam Ross and the Milk & Honey Legacy

The Penicillin was created in 2005 by Sam Ross at the legendary New York speakeasy Milk & Honey.

The Modern Masterpiece

Ross designed the drink as a variation on the Gold Rush (a Bourbon/Honey/Lemon sour). By swapping Bourbon for Scotch and introducing ginger and a smoky float, he created a drink that felt instantly historic. It is widely considered the first “Modern Classic” to feature Scotch as its primary ingredient, a spirit previously thought too aggressive for citrus-based cocktails.

The Medicinal Name

The name is a playful reference to the “healing” properties of honey, lemon, and ginger—classic ingredients in home remedies for the common cold. The addition of the “smoky” Scotch adds a medicinal, band-aid, or bonfire aroma that completes the theme.

Component Breakdown

The Dual-Scotch Strategy

1. The Body (Blended Scotch): Use a quality blend (e.g., Compass Box Artist Blend). This provides the cereal sweetness and structural foundation.
2. The Aroma (Islay Single Malt): Only a small “float” (7.5ml) of a heavily peated Islay malt (e.g., Laphroaig or Ardbeg) is needed. This provides the signature smoke without overwhelming the palate.

Honey-Ginger Syrup

This is the engine of the cocktail. A true Penicillin requires a 1:1:1 ratio syrup made from honey, fresh ginger juice, and sugar. This provides a “creamy” mouthfeel and a persistent, spicy heat that persists through the finish.

Preparation Mechanics

1. The Shake: Add the blended Scotch, lemon juice, and honey-ginger syrup to a shaker with ice. Shake vigorously for 12 seconds.
2. The Pour: Strain into an Old Fashioned glass over a large, fresh ice cube.
3. The Float (Crucial Step): Gently pour the Islay Single Malt over the back of a barspoon so it sits on top of the drink. This ensures the smoky aroma hits the drinker’s nose before they taste the sweet and spicy base.
4. Garnish: A piece of candied (crystallized) ginger.

Tasting Profile

The Penicillin is a sensory masterpiece of “push and pull.” The initial aroma is purely medicinal smoke and sea salt. The first sip, however, is a surprisingly bright burst of lemon and sweet honey. As the drink develops, the spicy heat of the ginger builds, eventually melding with the smoky finish of the Islay Scotch. It is a powerful, comforting, and remarkably balanced beverage.