Penicillin (eng.)

6 cl (2 oz.) Blended scotch whisky
 0,75 cl (1/4 oz.) Lagavulin 16y
 2,25 cl (3/4 oz) Fresh lemon juice
 2,25 cl (3/4 oz) Honey Syrup
 2-3 quarter size. Sliced fresh ginger

Muddle fresh ginger in a shaker and add the remaining ingredients, except for the Islay whiskey. Fill the shaker with ice and shake to chill; double-strain into an ice-filled old Fashioned glass. Float the whiskey on top and garnish with a candied ginger.

The book recommended:

How to taste cocktail and spirits like a pro. IBA official cocktail