If you’re looking for a Penicillin cocktail recipe, this version is smoky, warming and easy to make at home. A classic Penicillin combines Scotch whisky, lemon juice and honey-ginger syrup, often with a float of peated whisky for extra depth. If you like richer serves, you might also like Boozy Espresso Martini.
Quick answer
Prep time: 6 minutes
Serves: 1
Glass: Rocks glass
Garnish: Candied ginger or lemon slice
What is in a Penicillin cocktail?
A Penicillin is made with blended Scotch, fresh lemon juice and honey-ginger syrup, with a small float of peated Scotch on top for a smoky finish.
Ingredients
- 50ml blended Scotch whisky
- 20ml fresh lemon juice
- 20ml honey-ginger syrup
- 10ml peated Scotch, to float
- Ice
- Candied ginger or lemon slice, to garnish
How to make a Penicillin cocktail
- Add the blended Scotch, lemon juice and honey-ginger syrup to a shaker with ice.
- Shake until properly chilled.
- Strain into a rocks glass over fresh ice.
- Float the peated Scotch on top.
- Garnish and serve immediately.
Why this drink stands out
The Penicillin feels modern but already classic. The honey and ginger give it warmth, the lemon keeps it bright, and the peated whisky adds a smoky finish that makes it feel much more layered than the ingredient list suggests.
Tips for the best Penicillin
- Use fresh lemon juice for brightness.
- Make a proper honey-ginger syrup rather than adding them separately.
- Do not overdo the smoky float.
- Serve it cold so the flavours stay focused.
Penicillin FAQs
What whisky is best for a Penicillin?
A blended Scotch for the base and a peated Scotch for the float works very well.
Is a Penicillin cocktail smoky?
Usually yes, especially if you include the peated whisky float.
Is a Penicillin cocktail sweet?
It should be balanced, with honey softening the lemon and whisky rather than dominating them.
You might also like
- Pornstar Martini – for a completely different but equally bold serve.
Final pour
The Penicillin is a brilliant whisky cocktail for people who want something warming, modern and just a little smoky. It feels premium without being difficult to make.



