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This simple, 3 ingredient rhubarb syrup recipe is a great way to add sweetness and delicious rhubarb flavor to a variety of spring drinks.  

A bottle of rhubarb syrup in the middle of 2 glasses of rhubarb drinks.

A tart, starchy vegetable that is not commonly eaten raw, rhubarb is delicious in baked goods as well as syrup for cocktails and mocktails. It’s unique and sharp flavor goes well with berries, honey, and lemon flavors. 

Ingredients

Ingredients for rhubarb syrup.
  • Sugar – Choose either white cane sugar or white beet sugar for this recipe. Both have a clean taste that will allow the rhubarb flavor to shine through. You can use other sugars in place of the white sugar, but using things like maple syrup, honey, or agave nectar will change the overall flavor of the rhubarb syrup.
  • Rhubarb – Choose fresh or frozen rhubarb for this syrup recipe. Either one will work great. You only need the stems of the rhubarb. Do not use the leaves.
  • Water – Filtered water from your tap will work perfectly here. 

How to Make Rhubarb Simple Syrup 

If needed, clean and chop your rhubarb stalks into 1-2 inch pieces. 

A pot sitting on the stove, filled with water, sugar, and raw rhubarb.

In a medium sized pot over medium heat, combine sugar, rhubarb, and water. 

A pot on the stove filled with cooked rhubarb syrup.

Bring the mixture to a boil, reduce heat to simmer. Let the mixture simmer for five minutes, or until the rhubarb is soft and tender. 

Remove the pot from the heat and let it sit for 10 to 15 minutes until the mixture has cooled. 

Rhubarb syrup mixture being poured from a pot, through a fine mesh strainer, into a glass bowl.

Set a fine mesh strainer over a bowl and strain the cooled rhubarb mixture through the strainer.

A hand holding a spatula and pressing the liquid through a strainer into a glass bowl below.

Gently press all the liquid through to the bowl below using a spatula or wooden spoon. 

Finished rhubarb syrup being poured into a glass bottle.

Discard the cooked rhubarb and pour your syrup into a glass bottle or other glass airtight container for storing. 

Store your syrup in the refrigerator for up to two weeks.

A bottle of rhubarb syrup in the middle of 2 glasses of rhubarb drinks.
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How to Make Rhubarb Syrup

An easy recipe to make with spring rhubarb, this rhubarb simple syrup is delicious in cocktails, mocktails, lemonade, iced tea, or homemade rhubarb soda.

Ingredients
 

  • 2 cups rhubarb, fresh or frozen, chopped
  • 1 ¼ cups white sugar
  • 1 cup water

Instructions
 

  • If needed, clean and chop your rhubarb stalks into 1-2 inch pieces.
  • In a medium sized pot over medium heat, combine sugar, rhubarb, and water.
  • Bring the mixture to a boil, reduce heat to simmer. Let the mixture simmer for five minutes, or until the rhubarb is soft and tender.
  • Remove the pot from the heat and let it sit for 10 to 15 minutes until the mixture has cooled.
  • Set a fine mesh strainer over a bowl and strain the cooled rhubarb mixture through the strainer gently pressing all the liquid through to the bowl below using a spatula or wooden spoon.
  • Discard the cooked rhubarb and pour your syrup into a glass bottle or other glass airtight container for storing.
  • Store your syrup in the refrigerator for up to two weeks.
Serving: 1oz, Calories: 72kcal, Carbohydrates: 19g, Protein: 0.2g, Fat: 0.1g, Saturated Fat: 0.01g, Polyunsaturated Fat: 0.02g, Monounsaturated Fat: 0.01g, Sodium: 2mg, Potassium: 51mg, Fiber: 0.3g, Sugar: 18g, Vitamin A: 18IU, Vitamin C: 1mg, Calcium: 16mg, Iron: 0.05mg
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How to Use Rhubarb Syrup

  • Pour over vanilla ice cream.
  • Make a delicious Rhubarb Gin Gimlet cocktail.
  • Combine 2 ounces of rhubarb syrup with 4 ounces of cold club soda or sparkling water for a delicious fizzy rhubarb soda.
  • Make a delicious rhubarb strawberry cocktail by shaking up 2 ounces of strawberry vodka, 1.5 ounces of rhubarb syrup and 0.5 ounces of fresh lemon juice. 
  • Make a rhubarb margarita by combining 2 ounces of silver tequila, 1 ounce fresh lime juice, 2 ounce rhubarb syrup, 0.5 ounces orange liqueur. Shake with ice in a cocktail shaker and strain into a salt-rimmed rock glass filled with ice cubes. 
  • Add homemade rhubarb syrup into iced tea for a little sweetness. 
A glass of rhubarb soda garnished with a dried lemon slice.

Why is Rhubarb Syrup Pink? 

Rhubarb has mostly green stalks with very red skin on part of them. Thanks to that red skin, rhubarb syrup is naturally a beautiful pink color, giving your cocktails and mocktails a fun spring look.

A bottle of rhubarb syrup with two rhubarb drinks in the background.

Variations on Rhubarb Syrup

Make this recipe your own by adding in additional ingredients alongside the rhubarb. Try fresh strawberries, raspberries, or vanilla beans for a delicious twist on rhubarb simple syrup. 

What’s the best time of year to buy rhubarb?

Where I live in Michigan, rhubarb season is usually 3-4 weeks during mid-May and early June. It is easily grown in our area, so many people have it in their backyards. It is also one of the first crops to show up at the farmer’s markets and in our local grocery stores. 

Some grocery stores carry frozen rhubarb in their frozen fruit section, so keep an eye out for it if you’re having trouble finding fresh rhubarb.

Can you freeze rhubarb? 

Fresh rhubarb can be easily frozen. Just chop it up into 1-2 inch pieces and place it in an airtight bag in the freezer for up to three months. It will lose its texture when it’s frozen, so keeping your rhubarb this way is best when using it for syrup.

More Easy Simple Syrup Recipes

Simple syrups are a quick and easy way to add delicious flavor and sweetness to a variety of cocktails and mocktails. Fresh basil syrup, homemade orange blue curaçao syrup, and citrusy hibiscus syrup all come together in minutes. Homemade strawberry syrup is my favorite thing to make with fresh Michigan strawberries and is ideal in a glass of lemonade.

I love when you share my recipes!