Boston Sour cocktail

Boston Sour Cocktail Recipe with Ingredients and Instructions

The Boston Sour is a whiskey sour cocktail recipe made with bourbon, lemon juice, and egg white. This frothy sour cocktail features whiskey, citrus, and tart flavors with a silky foam top. A variation of the classic Whiskey Sour, the Boston Sour is perfect for bourbon lovers seeking elevated mixed drinks.

Glass:

Tumbler

Strength

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Learn How

Ingredients

1

Instructions

  1. 1

    Add bourbon, fresh lemon juice, sugar syrup, and egg white to a shaker.

  2. 2

    Dry shake vigorously without ice to emulsify the egg white.

  3. 3

    Add ice and shake again until well chilled.

  4. 4

    Fine strain into a tumbler.

  5. 5

    Add 2 dashes of Angostura bitters on top of the foam.

  6. 6

    Garnish with an orange zest.

Details

Glass: Tumbler
Makes: 1 serving
Strength:

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Ingredient Status

Select ingredients in your bar to see what you can make.

Editorial Notes

More context for the Boston Sour

The Boston Sour combines Bourbon, Lemon Juice, and Sugar Syrup. These quick notes add context on structure, flavor, and where the drink fits best.

Updated Dec 22, 2025 • 5 ingredients • 6 steps

Build at a glance

This version uses 5 ingredients across 6 steps. For a home bar, that makes it a little more hands-on rather than fussy.

What to expect

Expect spirit forward, tart, and citrusy notes. Served in a Tumbler, the drink lands balanced rather than aggressive and keeps its structure clear.

Best moment

This style fits weekend mixing and reliable home-bar service. If you already enjoy Whiskey cocktails, it is an easy recipe to keep in rotation.

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