Easy Rhubarb Gin & Tonic Cocktail, Easy Rhubarb Cocktail Recipes
Rhubarb Cocktail Recipe
Table of Contents

The Rhubarb Gin & Tonic Cocktail is a modern twist on the classic gin and tonic, offering a delightful combination of tangy rhubarb and crisp gin. This refreshing drink is perfect for any occasion, whether you’re enjoying a relaxing evening on the patio or hosting a dinner party with friends. The balance of flavors makes this cocktail a crowd-pleaser, and it’s easy to prepare, with a few simple ingredients that come together to create something truly special.
In this article, we will explore the key ingredients, preparation time, and step-by-step instructions on how to create the perfect Rhubarb Gin & Tonic Cocktail. We’ll also provide expert tips, presentation suggestions, and creative twists that will allow you to personalize the drink to your liking.
Key Ingredients and Their Roles
Rhubarb Syrup
The key ingredient in this cocktail is rhubarb syrup, which brings a sweet and tangy flavor that perfectly complements the dryness of the gin. Rhubarb is naturally tart, which makes it an excellent counterpoint to the crispness of gin and the bitterness of tonic water.
Gin
A good quality gin is essential for the Rhubarb Gin & Tonic Cocktail. The botanicals in the gin enhance the overall flavor profile of the drink, adding complexity and depth to the otherwise simple mix of syrup, gin, and tonic.
Tonic Water
Tonic water is a must in any gin and tonic cocktail. It adds a fizzy, slightly bitter element that balances the sweetness of the rhubarb syrup and the botanicals in the gin. Look for a high-quality tonic water that is not overly sweet for the best results.
Ice
Ice helps chill the drink and gives it that refreshing, crisp sensation when sipped. Crushed ice or large ice cubes work best in this cocktail, as they allow for a slow melt, keeping the drink cool without diluting the flavors too quickly.
Garnishes
The garnishes play an important role in both the aesthetics and flavor of the drink. A sprig of fresh mint, a slice of rhubarb, or even a twist of lime can enhance the visual appeal while adding an extra layer of flavor. Garnishes are an easy way to elevate your Rhubarb Gin & Tonic Cocktail.
Preparation Time
- Prep Time: 10 minutes
- Cook Time (for rhubarb syrup): 15 minutes
- Total Time: 25 minutes
- Servings: 1 cocktail
Ingredients
- 2 oz rhubarb syrup (recipe below)
- 2 oz gin (a quality London dry gin works best)
- 4 oz tonic water
- Ice (crushed or cubes)
- Garnishes: fresh rhubarb stalk, mint sprig, or lime wedge
For the Rhubarb Syrup:
- 2 cups chopped rhubarb
- 1 cup sugar
- 1 cup water
- 1 tablespoon lemon juice (optional, for extra tang)

Step-by-Step Cooking Instructions with Expert Tips
Step 1: Make the Rhubarb Syrup
To start, you’ll need to prepare the rhubarb syrup. Place the chopped rhubarb, sugar, and water in a saucepan over medium heat. Stir occasionally until the sugar dissolves. Allow the mixture to simmer for about 10–15 minutes, or until the rhubarb breaks down and the syrup thickens slightly. You can adjust the cooking time to your preference—longer simmering results in a thicker, more concentrated syrup.
Once the rhubarb has softened and the syrup has thickened to your liking, strain the mixture through a fine mesh sieve to remove the solids. Press gently on the rhubarb pulp to extract as much syrup as possible. Stir in the lemon juice if you’re using it, then let the syrup cool.
Expert Tip: Make extra rhubarb syrup and store it in the fridge for up to one week. This syrup can also be used in other cocktails or even poured over desserts like ice cream or pancakes.
Step 2: Prepare the Cocktail Glass
Fill a tall glass (like a highball or Collins glass) with ice cubes or crushed ice. The more ice you use, the colder and more refreshing your cocktail will be. If you want to make the drink extra chill, you can even pre-chill your glass by placing it in the freezer for a few minutes before serving.
Step 3: Add the Rhubarb Syrup and Gin
Pour 2 oz of the homemade rhubarb syrup into your prepared glass. Then, add 2 oz of gin. Stir gently to combine the syrup and gin. The combination of the sweet, tart rhubarb syrup with the crisp, herbaceous gin creates a flavorful base for the cocktail.
Expert Tip: If you want a stronger rhubarb flavor, add an extra half-ounce of rhubarb syrup. If you prefer a more gin-forward drink, you can reduce the syrup by half.
Step 4: Add Tonic Water
Top up the cocktail with 4 oz of tonic water. Gently stir to combine. The tonic will add a fizzy, slightly bitter element that balances out the sweetness of the rhubarb syrup and enhances the overall flavor of the cocktail.
Expert Tip: For a more intense tonic flavor, choose a tonic water with a higher quinine content. If you prefer a less bitter drink, opt for a naturally sweetened tonic water.
Step 5: Garnish and Serve
Garnish your Rhubarb Gin & Tonic Cocktail with a sprig of fresh mint, a slice of rhubarb, or a lime wedge. These garnishes not only add to the visual appeal but also provide a hint of freshness that complements the drink’s flavor.
Expert Tip: For a decorative touch, you can freeze the garnishes in ice cubes to add to your cocktail. This adds visual interest and keeps the drink cool without diluting it too quickly.
Presentation Tips
- Glassware: Use a tall, clear glass to showcase the vibrant pink color of the rhubarb syrup. A highball glass or Collins glass works perfectly for this cocktail.
- Garnishes: The garnishes should enhance the drink’s look while also adding flavor. Fresh mint leaves add a pop of green, while thin slices of rhubarb give a rustic feel. A lime twist or wedge adds a citrusy touch.
- Ice: Make sure to use plenty of ice to keep the drink cool and refreshing. Large ice cubes or crushed ice work best, as they melt slowly and won’t dilute the cocktail too quickly.
Creative Twists for the best Rhubarb Cocktail
Rhubarb & Elderflower Gin & Tonic
Add a splash of elderflower liqueur like St-Germain to your Rhubarb Gin & Tonic Cocktail for an extra floral note that pairs beautifully with the tart rhubarb.
Rhubarb & Ginger Gin & Tonic
For a spicier kick, infuse your rhubarb syrup with a little fresh ginger before straining it. This adds a warm, aromatic flavor that contrasts nicely with the sweetness of the rhubarb.
Sparkling Rhubarb Gin & Tonic
Substitute the tonic water for sparkling wine (such as prosecco) to create a more festive version of this drink. The bubbles from the wine will add a light, effervescent quality to the cocktail.
Frozen Rhubarb Gin & Tonic
Blend the rhubarb syrup and gin with ice to create a frozen, slushy version of this cocktail. It’s perfect for hot summer days and adds a fun twist to the traditional drink.
Pro Tip for Customization
To make the Rhubarb Gin & Tonic Cocktail your own, try these customization options:
- Adjust the sweetness: If you prefer a sweeter drink, add a little more rhubarb syrup or even a touch of honey. For a less sweet version, reduce the syrup or use a sugar substitute.
- Experiment with different gins: Try different types of gin, such as a floral gin or a citrus-forward gin, to see how it impacts the flavor of the cocktail.
- Infuse the gin: If you have time, infuse your gin with rhubarb or other fruits like strawberries or raspberries. This will enhance the flavor and make your drink even more unique.

FAQs about Rhubarb Cocktail
Can I make rhubarb syrup in advance?
Yes, rhubarb syrup can be made ahead of time and stored in the refrigerator for up to one week. It’s perfect for making multiple drinks in one go.
Can I use store-bought rhubarb syrup?
If you don’t want to make your own syrup, you can buy pre-made rhubarb syrup at many specialty stores. Just make sure it’s a high-quality syrup with natural ingredients for the best flavor.
Can I use a different type of fruit for this Rhubarb Cocktail?
Yes, you can experiment with other fruits like strawberries or raspberries. These fruits pair well with gin and tonic water, though they will create a different flavor profile than rhubarb.
Can I make Rhubarb Cocktail alcohol-free?
Yes, you can easily make a non-alcoholic version of this cocktail by omitting the gin and using more tonic water or sparkling water instead. You can also try non-alcoholic gin alternatives available in stores.
Can I add more flavors toRhubarb Cocktail?
Absolutely! You can add a splash of citrus juice like orange or grapefruit for a zesty kick, or infuse the syrup with herbs like basil or thyme for a more savory note.
This recipe for Rhubarb Gin & Tonic Cocktail combines the tangy goodness of rhubarb with the crisp, refreshing flavors of gin and tonic. It’s a delightful drink that can be easily customized to suit your taste. Whether you’re looking for a classic version or want to get creative with flavor twists, this cocktail is sure to impress your guests and elevate any occasion.
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