Blueberry Gin Sour

This blueberry gin sour is fruity, tart, and has that beautiful silky foam on top that makes a sour feel like a proper cocktail. It’s made with gin, homemade blueberry syrup, fresh lemon, and egg white, and it looks stunning.

A purple Blueberry Gin Sour with a foamy top served in a coupe glass, garnished with three blueberries on a cocktail pick. A small glass bowl of blueberries and a lit candle are in the background.

About this recipe

This is a gin sour with homemade blueberry syrup in place of simple syrup. The blueberry gives the drink a gorgeous deep purple color and pairs really well with the botanical notes in gin – blueberry and juniper are a great combination. It’s sweet and tart in the right balance, with that thick silky foam on top from the egg white.
It’s very similar to my raspberry gin sour – same technique, just a different berry. If you love fruity gin sours, both are worth making. The blueberry version is a little less sharp and more round in flavor.
The dry shake is the technique that makes this work. You shake everything without ice first, then add ice and shake again. That first shake without ice is what emulsifies the egg white and gives you the thick, stable foam. It takes an extra 15 seconds and it really makes a difference, so don’t skip it.
You need to make the blueberry syrup ahead so it has time to cool. Keep a little back to drizzle on the foam or use fresh blueberries on a skewer to garnish.

Key ingredients and why

  • Gin: A London Dry gin works best here. The juniper-forward botanicals complement the blueberry without competing with it. For more ideas, browse my gin cocktail recipes.
  • Blueberry syrup: Where all the fruity flavor and color comes from. I use my homemade blueberry syrup – make it ahead so it’s completely cool before using.
  • Fresh lemon juice: The sour element. Always fresh, never bottled. About half a lemon gives you an ounce.
  • Egg white: Creates that silky, thick foam on top. Half an egg white per drink is all you need. For a vegan version, swap it for half an ounce of aquafaba (the liquid from a can of chickpeas) – it froths up just as well.

Method

  1. Fill a coupe glass with ice and set aside to chill while you make the cocktail.
A hand pours red liquid for a Blueberry Gin Sour from a jigger into a stainless steel cocktail shaker on a light-colored surface.
  1. Add the gin, blueberry syrup, lemon juice, and egg white to a cocktail shaker. Shake vigorously for about 15 seconds without ice. This “dry shake” emulsifies the egg white and creates better foam.
A hand pours a creamy, pink-purple Blueberry Gin Sour from a metal shaker into a stemmed glass, set on a light beige surface with a small jar in the background.
  1. Shake with ice until chilled, then dump the ice from the coupe glass. Strain the cocktail into the chilled glass.

Tips

  • Make the syrup ahead. Your blueberry syrup needs to be completely cool before using, so make it at least an hour in advance (or keep a batch in the fridge).
  • Don’t skip the dry shake. Shaking without ice first is what creates that thick, silky foam. It emulsifies the egg white properly before the ice dilutes and chills the drink.
  • Try other fruit syrups. This same method works beautifully with raspberry syrup or even rosemary syrup for a more herbal twist.
  • Swap gin for vodka if you prefer a more neutral spirit. You’ll get a blueberry vodka sour that’s just as delicious.
  • Add a sugar rim for a little extra sparkle. Run a lemon wedge around the rim and dip in sugar before making the drink. Add some freeze-dried blueberry powder in the sugar too for color and flavor.

Gin sour FAQ

Yes. Use half an ounce of unsalted aquafaba instead. It’s the liquid from a can of unsalted chickpeas and foams up just as well with no taste or smell.

The drink is best made fresh. The syrup keeps in the fridge for up to two weeks so make a big batch and use it across multiple drinks.

The dry shake wasn’t long enough. Shake hard for a full 15 seconds before adding any ice.

Syrups can vary in sweetness. Try reducing to 15ml instead of 22ml, or add a little extra lemon juice to balance it out.

Related recipes

A coupe glass filled with a vibrant Blueberry Gin Sour cocktail, topped with a layer of foam and garnished with three blueberries on a cocktail pick. In the background, a small glass jar of blueberries sits on a light, textured surface.
A coupe glass filled with a vibrant Blueberry Gin Sour cocktail, topped with a layer of foam and garnished with three blueberries on a cocktail pick. In the background, a small glass jar of blueberries sits on a light, textured surface.

Blueberry Gin Sour

Elien Lewis
This blueberry gin sour cocktail is flavored with homemade blueberry syrup and fresh lemon.
5 from 3 votes
Prep Time 5 minutes
Total Time 5 minutes
Course Cocktails
Cuisine American
Servings 1
Calories 201 kcal

Ingredients
 
 

  • 2 oz London Dry Gin
  • 3/4 oz blueberry simple syrup
  • 3/4 oz lemon juice fresh
  • 1 egg white or ½ oz unsalted aquafaba
  • Ice
  • Fresh blueberries, for garnish

Instructions
 

  • Fill a coupe glass with ice.
  • To a cocktail shaker, add gin, blueberry syrup, lemon juice and egg white. Add on the lid and shake vigorously for 15 seconds.
  • Add in ice and shake the mixture again until it is thoroughly chilled.
  • Remove the ice from the coupe glass, then strain the drink into the chilled glass.
  • Serve with a toothpick speared with fresh blueberries.

Notes

Blueberry syrup: To make the blueberry syrup: combine 1½ cups blueberries, 1 cup sugar, 1 cup water, and 1½ tsp lemon juice in a saucepan. Simmer 10 minutes, cool to room temperature, then strain. Full recipe at blueberry simple syrup.
  • The dry shake (shaking without ice first) is essential for creating the silky foam layer.
  • Make your blueberry syrup ahead of time so it’s completely cool.
  • For a vegan version, substitute the egg white with 1/2 oz (15 ml) aquafaba (the liquid from a can of chickpeas). It froths up just as nicely.
  • Try swapping the blueberry syrup for raspberry syrup for a raspberry gin sour variation.
  • One lemon yields approximately 1 oz (30 ml) of juice.

Nutrition

Serving: 1drinkCalories: 201kcalCarbohydrates: 17gProtein: 2gFat: 0.1gSaturated Fat: 0.01gSodium: 38mgPotassium: 61mgFiber: 0.1gSugar: 16gVitamin A: 1IUVitamin C: 8mgCalcium: 5mgIron: 1mg
Keyword blueberry
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