Whiskey Sour

Bourbon, fresh lemon and sugar syrup, shaken cold, with optional egg white for a silky top. The template for every sour in the library.

Spirit
Bourbon
Glass
Old fashioned glass
Method
Shaken
Difficulty
Intermediate

The riffs: Whiskey Sour and Sour Variations

Spec source: IBA official cocktail list

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Ingredients

Ingredients for Whiskey Sour. Tick each one as you add it.
AddedMeasureIngredient
1½ oz
¾ oz
⅔ oz
⅔ oz , optional

Steps

  1. If using egg white, shake everything once without ice first (a dry shake).
  2. Add ice and shake hard.
  3. Strain into an old fashioned glass over ice.
  4. Garnish with half an orange wheel and a maraschino cherry.

Garnish Half an orange wheel and a maraschino cherry

Batch it For a party of 4–20

Makes 8 drinks, about 35¾ oz · 1075 ml before ice.

Whiskey Sour batch
AmountIngredient
12 oz · 360 mlBourbon
6 oz · 180 mlFresh lemon juice
5⅓ oz · 160 mlSimple syrup
5⅓ oz · 160 mlEgg white
7¼ oz · 215 mlCold water, for dilution (approx.)

The water stands in for the melt from shaking: about 25% for a shaken drink. It is an approximation, so taste and adjust. Chill the batch at least 2 hours and pour over fresh ice.

Use a 2 liter pitcher, or split it between two 1 liter bottles.

Egg and cream don’t keep in a batch: add them per drink and shake to order.

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Why it works

A good sour is a balance of strong, sour and sweet. Bourbon gives the base and vanilla notes, lemon brings acidity, and the sugar syrup rounds both off. Egg white adds no flavor but changes the texture: shaken first without ice, it whips into a silky, foamy top that softens the lemon’s edge. Over ice, the drink stays cold as it’s sipped.

Substitutions

  • No egg? Leave it out for a lighter, sharper drink, or use 1 oz aquafaba for a vegan foam.
  • Swap the syrup for honey syrup or maple syrup for a rounder sweetness.
  • Rye makes it spicier and drier than bourbon.

Variations

Questions

What does egg white do in a Whiskey Sour?
It adds texture, not flavor: a silky body and a foam cap. Dry shake first (no ice) to build the foam, then shake again with ice.
Is raw egg white safe?
Use fresh eggs, or pasteurized egg whites from a carton if that is a concern.
Should it be served up or on the rocks?
This spec is on the rocks in an old fashioned glass. Served up in a coupe is also common.

Making it: Whiskey Sour

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