Whiskey Sour
The Sour template applied to American whiskey — bourbon, lemon, sugar, optional egg white.
- Foam cap + bitters dash3 drops in a line or dot
- Strained up or over fresh cube
- Wet shake with ice10 seconds — chills and dilutes
- Dry shake (no ice)10 seconds — emulsifies egg white
How to make it
- If using egg white: combine bourbon, lemon, syrup, and egg white in a shaker without ice and shake for 10 seconds (the dry shake).
- Add ice and shake again for 10 seconds.
- Strain into a chilled coupe or over a single large cube in a rocks glass.
- For egg-white version: dot three drops of Angostura on the foam and, if you like, drag a toothpick to make a pattern.
The history
The Whiskey Sour is one of the oldest documented cocktails in American history, appearing in Jerry Thomas's 1862 Bartender's Guide — 'The Bar-Tender's Guide' — alongside brandy, gin, and rum Sours. The template is older than the Manhattan and older than the modern Old Fashioned.
The egg white was standard in the 19th century (it stabilized citrus in the era before refrigeration) and disappeared in mid-century America for food-safety anxieties. The 2000s revival brought it back — with pasteurized egg whites or aquafaba as safer alternatives — because it genuinely improves the texture.
The Boston Sour (with egg white) and the New York Sour (with a float of dry red wine) are two of the drink's oldest documented variations, both appearing in print before Prohibition.
Common mistakes
- Sour mix from a bottle
The name refers to the flavor profile, not to a store-bought product. Fresh lemon or the drink fails.
- Skipping the dry shake
Without a dry shake, egg white will not emulsify and the foam will collapse in seconds. Ten seconds without ice first, then ten with.
- Bitters mixed in
The Angostura dash goes on top of the foam as garnish, not in the shaker. It is aromatic, not flavoring.
Variations
- New York Sour
Float 15 ml of a dry red wine (Malbec, Syrah) on top of the finished Sour by pouring it over the back of a bar spoon.
- Gold Rush
Bourbon + honey syrup (2:1) + lemon juice, no egg. A modern classic from Milk & Honey, NYC, 2001.
- Penicillin
Same skeleton with a smoky Islay Scotch float. Sam Ross, Milk & Honey, 2005.
Frequently asked
- Egg white or not?
- Egg white gives the drink body and a foam cap; it does not change flavor. Skip it if you're unsure — a Whiskey Sour without egg white is entirely classical.
- Bourbon or rye?
- Either. Bourbon leans round and honeyed against the lemon; rye leans sharper and drier. Both are correct.
- Is aquafaba a real substitute?
- Yes. Use 15 ml of the liquid from a can of chickpeas in place of egg white. It emulsifies almost identically.
- How hard to shake?
- Hard, twice. The dry shake emulsifies; the wet shake chills. Under-shaking gives you a warm, flat Sour with no foam.