SHAKE all ingredients with ice and strain into ice-filled glass.
Lemon slice & cherry on stick (sail)
I find the classic formulation more sweet than sour and prefer the 4:2:8 ratio.
This recipe follows the classic sour proportions (3:4:8) three quarter part of the sour ingredient (lemon juice) one part of the sweet ingredient (sugar syrup) and two parts of the strong ingredient (whiskey).
There are approximately 266 calories in one serving of Whiskey Sour (Classic Formula).