Boston Sour

A refreshing Boston Sour cocktail in a glass with a lemon twist garnish on a wooden table. pinit

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Welcome to our blog post dedicated to the Boston Sour, a timeless cocktail that brings together the smoothness of whiskey with the tangy flavors of citrus. With its origins in the bustling bars of Boston, this cocktail has stood the test of time and continues to be a favorite among whiskey enthusiasts. In this article, we will explore the history of the Boston Sour, guide you through the process of making this delicious drink, and provide tips and variations to help you customize it to your liking. Whether you’re a seasoned cocktail aficionado or a curious beginner, join us as we delve into the world of the Boston Sour and discover the perfect balance of flavors.

The Boston Sour is a classic cocktail that adds a delightful twist to the traditional Whiskey Sour. While the origins of the Whiskey Sour can be traced back to the early 19th century, the Boston Sour is a later variation that incorporates the frothy texture of egg white.

  • The Whiskey Sour, consisting of whiskey, lemon juice, and sugar, was a popular cocktail in the United States during the 19th century.
  • The Boston Sour, sometimes referred to as a “sour with a Boston flip,” gained popularity in the 19th and early 20th centuries and introduced the use of egg white to create a silky frothiness.
  • The addition of egg white not only enhances the cocktail’s texture but also adds a subtle creaminess and a visually appealing frothy top.

The Boston Sour is a testament to the creativity and ingenuity of mixologists throughout history, who have continually found ways to elevate classic cocktails.

Boston Sour

The Boston Sour is a classic whiskey cocktail that adds a twist to the traditional Whiskey Sour by incorporating the richness of egg white into the mix. The combination of whiskey, lemon juice, simple syrup, and frothy egg white creates a smooth and velvety texture that complements the bold flavors of the whiskey. This cocktail is often served in a rocks glass with a garnish of cherry or lemon peel. The Boston Sour is a versatile drink that can be enjoyed year-round and is a popular choice for whiskey lovers looking for a balance of sweetness and tartness. In this blog post, we will take you on a journey to master the art of making the perfect Boston Sour, from selecting the right whiskey to achieving the ideal frothiness. Get ready to elevate your cocktail game and savor the timeless elegance of the Boston Sour.

Tools and Equipment

Prep Time 5 mins Total Time 5 mins Difficulty: Intermediate Servings: 1 Calories: 228.21 Best Season: Suitable throughout the year


Step-by-Step Instructions

  1. Fill a cocktail shaker with ice cubes.

  2. Add whiskey, lemon juice, simple syrup, and the egg white to the shaker.

  3. Shake vigorously for about 10-15 seconds to incorporate the ingredients and create a frothy texture.

  4. Strain the mixture into a rocks glass filled with fresh ice.

  5. Garnish with a cherry or a twist of lemon peel.

  6. Serve and enjoy your perfectly balanced Boston Sour.

Nutrition Facts

Servings 1

Amount Per Serving
Calories 228.21kcal
% Daily Value *
Total Fat 0.14g1%
Saturated Fat 0.01g1%
Sodium 52.52mg3%
Potassium 141.47mg5%
Total Carbohydrate 21.94g8%
Dietary Fiber 0.09g1%
Sugars 18.69g
Protein 3.28g7%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs. Please note that the nutritional values provided are approximate and may vary depending on the specific ingredients and portion sizes used. It's always best to double-check with your specific ingredients and measurements for accurate nutritional information.


Tips and Variations:
  • Use your preferred type of whiskey, such as bourbon, rye, or scotch, to personalize the flavor profile of your Boston Sour.
  • Experiment with different ratios of lemon juice and simple syrup to find your desired level of tartness and sweetness.
  • If you prefer a lighter texture, shake the cocktail without ice first (known as a "dry shake") to emulsify the egg white, then add ice and shake again to chill the drink.
  • Consider using flavored simple syrups, such as honey or maple, to add a unique twist to your Boston Sour.
  • For a smoky variation, try using a peated whiskey to infuse the cocktail with a hint of smokiness.
  • If you don't have a cocktail shaker, you can use a mason jar or any container with a tight-fitting lid to shake the ingredients.
  • To create a beautiful foam on top of your Boston Sour, dry shake the cocktail without ice, then add ice and shake again vigorously.
  • For a garnish alternative, try adding a few drops of aromatic bitters on top of the foam for an extra layer of flavor.
  • If you prefer a sweeter cocktail, increase the amount of simple syrup to suit your taste.
  • Remember to use fresh lemon juice for the best flavor and aroma.
Serving Suggestions:
  • Enjoy the Boston Sour as a pre-dinner cocktail to stimulate your appetite.
  • Serve it at your next cocktail party or social gathering as a sophisticated and classic choice.
  • Pair it with rich and hearty dishes like grilled steak, roasted chicken, or aged cheeses.
Allergen Information:
  • The Boston Sour contains allergens related to its ingredients, including alcohol, lemon juice, and egg white. Those with allergies or dietary restrictions should be cautious when consuming this cocktail and consider alternatives as needed.
Wine or Drink Pairing:
  • The Boston Sour is typically enjoyed on its own as a standalone cocktail rather than being paired with other beverages.
  • It's worth noting that the Boston Sour can be customized by using different types of whiskey or adding a touch of sweetness to suit individual preferences.
Storage and Leftovers:
  • The Boston Sour is best enjoyed immediately after preparation to fully appreciate its frothy texture and vibrant flavors.
  • Due to the inclusion of egg white, there are no leftovers to store with this cocktail, as it's meant to be consumed fresh and within a short time of preparation.
  • When crafting a Boston Sour, it's best to make it to order to ensure that you savor its unique frothy charm and the harmonious blend of whiskey, lemon, sugar, and egg white.
Keywords: Boston Sour, Whiskey Cocktail, Classic Cocktail, Egg White, Whiskey, Lemon Juice, Simple Syrup, Frothy, Tart, Sweet

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