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Rhubarb Sour – A Gin Cocktail

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Last Updated on April 11, 2021 by

A perfect summer cocktail, the Rhubarb Gin Sour Cocktail!



With the dog days of summer approaching, we harvested the last tender stalks of our rhubarb plant. We decided that we would use some of the stalks to make up a rhubarb simple syrup that would be a nice sweet and tart option for our drinks.




Rhubarb Sour cocktail in a coupe








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Rhubarb Sour cocktail in a coupe



Rhubarb Sour cocktail in a coupe



What Ingredients are Needed in a Gin Sour Cocktail?

  • Lemon Juice
  • Egg White
  • London Dry Gin
  • Rhubarb Simple Syrup



Rhubarb Sour cocktail in a coupe



Rhubarb Sour cocktail in a coupe




With this fresh syrup in our hands, we decided to try out a recipe that would be quick and simple and pay a bit of an homage to an often forgotten classic, the gin sour.



Rhubarb Sour Cocktail in a coupe






Rhubarb Sour Cocktail in a coupe glass





Rhubarb Sour cocktail in a coupe




If You Are Looking for More Egg White Cocktails, Try These!



Combining a tart sweetness with a citrus burst, the rhubarb sour is a great drink for the hot summer evenings. You may need a shaker and jigger for this one! Using a crisp clean gin gives the drink a hit of herbs and citrus that makes the drink very refreshing.



The inclusion of an egg white brings a creamy silkiness to the drink, making it feel quite elegant. If you want to try another sour cocktail, try our Blood Orange Gin Sour!






Like this recipe? Try these below, too!

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Strawberry Rhubarb Daiquiri Float




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Other Rhubarb Cocktails

Other London Dry Gin Cocktails



Also, don’t forget to follow us on Instagram and tag #gastronomcocktails so we can see all the wonderful recipes YOU recreate from this site!



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Rhubarb Sour Cocktail in a coupe glass
Yield: 1

Rhubarb Sour - A Gin Cocktail

Prep Time: 5 minutes
Total Time: 5 minutes

A fabulous cocktail with the bitter sweet bite of rhubarb and gin, as well as lemon and an egg white!


For the Cocktail

Rhubarb Simple Syrup

  • 1/2 cup chopped rhubarb
  • 1 cup water
  • 1 cup sugar


For the Cocktail

Pour all ingredients into a cocktail shaker.

Add plenty of ice and shake for 30 seconds.

Double strain into a rocks glass or cocktail coupe.


For the Rhubarb Simple Syrup

Combine all ingredients in a saucepan.

Heat over medium heat until boiling.

Stir and let simmer on low for 15 minutes. Strain out rhubarb, discard rhubarb pieces.

Let syrup cool.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 288Total Fat: 0.3gSaturated Fat: 0.2gTrans Fat: 0gUnsaturated Fat: 0gCholesterol: 0mgSodium: 39mgCarbohydrates: 56.8gFiber: 0.1gSugar: 56.8gProtein: 3.8g

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Rhubarb sour in a cocktail coupe




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