|Freshly squeezed lemon juice|
|Giffard Sugar Cane Syrup|
|Pasteurised egg white|
Bourbon whiskey soured with lemon juice and smoothed by egg white.
Whereas the addition of egg white to a Whiskey Sour is optional, egg white is a requisite in a Boston Sour – a Boston Sour is simply a Whiskey Sour with egg white.
A history of the Whiskey Sour cocktail can be found on our page.