The True Recipe of the Rumsour Cocktail

25 January 2025 | Cocktails
The True Recipe of the Rumsour Cocktail

The Rumsour cocktail is a timeless drink that embodies both simplicity and sophistication. Delicately tangy and sweet, it is one of the great classics of mixology. Its history dates back several centuries and is closely tied to the history of rum itself. Let’s dive into the origins of this iconic cocktail before learning how to prepare it perfectly.

The Origins of the Rumsour

The Rumsour belongs to the "sour" cocktail family, a category of alcoholic mixes based on three essential ingredients: a spirit, a citrus fruit (often lemon juice), and a sweetener. This simple and balanced structure is believed to have been codified in the 19th century by American bartenders.

Although the Rumsour does not have a formally identified inventor, it was likely inspired by the "grog" recipes consumed by British sailors in the 18th century. These sailors mixed rum, lemon juice, and sugar to combat scurvy and improve the taste of the rudimentary rum of the time. This combination of ingredients was later refined by mixologists to become the Rumsour we know today.

recipe rumsour
rum sour

Tips for a Perfect RumSour :

    • Choose the right rum: Opt for an amber rum with woody and vanilla notes or a more complex aged rum to add depth to the cocktail.

    • Use fresh ingredients: Prioritize freshly squeezed lemon juice for an authentic and vibrant flavor.

    • Experiment: Add a dash of Angostura bitters or an orange zest for a touch of originality.

The Authentic Rumsour Recipe

Creating a perfect Rumsour requires quality ingredients and meticulous preparation. Here’s the classic recipe : 

Ingredients

    • 6 cl of amber or aged rum (depending on your preference)

    • 3 cl of fresh lemon juice

    • 2 cl of cane sugar syrup

    • (Optional) 1 egg white for a creamy texture

    • Ice cubes

The preparation of the Rum Sour

    1. In a shaker, pour the rum, fresh lemon juice, cane sugar syrup, and the egg white if you want to add a touch of creaminess.

    2. Dry shake (without ice) for about 10 seconds to emulsify the egg white.

    3. Then add ice cubes to the shaker and shake vigorously for 15 to 20 seconds to cool and mix the ingredients.

    4. Strain the mixture with a cocktail strainer into an old-fashioned glass or a whiskey glass.

    5. Garnish with a lemon slice or a maraschino cherry for a touch of elegance.

rumsour drink

We recommend the following rums for making your rum sour:

The Rumsour is a true homage to the art of cocktails: simple, elegant, and adaptable to individual tastes. By making it at home, you’ll be continuing a tradition that spans ages while enjoying a moment of pure gustatory pleasure.

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alexandre beudet
Alexandre Beudet
Founder