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Boston Sour

Difford’s Guide
Discerning Drinkers (155)
Measurements in:
Serves:
1
Ingredients
2 fl oz Bourbon whiskey
3/4 fl oz Lemon juice (freshly squeezed)
1/2 fl oz Sugar syrup 'rich' (2 sugar to 1 water) 65.0°Brix
1/2 fl oz Egg white (pasteurised) or Fee Brothers Fee Foam cocktail foamer

How to make

Glassware

Serve in a Coupe glass

Prepare

  1. Select and pre-chill a COUPE GLASS.
  2. Prepare garnish of lemon zest twist.

Method

  1. SHAKE all ingredients with ice and strain back into shaker.
  2. DRY SHAKE (without ice).
  3. FINE STRAIN into chilled glass.

Garnish

  1. EXPRESS lemon zest twist over the cocktail and use as garnish.

Flavour Profile

No alcohol
Medium
Boozy
Strength 7/10
Sweet
Medium
Dry/sour
Sweet to sour 6/10

Health & Nutrition

Nutrition:

One serving of Boston Sour contains 209 calories

Alcohol content:

  • 1.5 standard drinks
  • 17.65% alc./vol. (35.29° proof)
  • 21.3 grams of pure alcohol

Allergens:

Recipe contains the following allergens:

  • Egg white (pasteurised) — Eggs
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History

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.
See: Whiskey Sour cocktail History

Review

Bourbon whiskey soured with lemon juice and smoothed by egg white.

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Comments & Discussion

Yossi Burg
I made this this evening with Woodford's Reserve (40% ABV here in Australia) - I normally make old fashioned with this as the wood varnish-like qualities shine. However- using in this sour along with aquafaba that same nose is there but with warm butterscotch flavour over other flavours- most surprising, next time I will knock the syrup down to 10ml. Wonderful sour.
1
Chris Dimal
Beautiful. I actually prefer this over the rocks version. Perfect balance of fluffiness, sourness, and the corn, baking spices and caramel of the Bourbon.
2
Wayne Hanley
I used Fee Brothers Fee Foam Cocktail Foamer in place of the egg white. It worked wonderfully. Nice cocktail. It will definitely be revisited.
2
John Hinojos
Nicely sour. Frothy head does add interesting texture to the cocktail. Subtle tastes of the corn from the bourbon comes through. Excellent any time cocktail.
2