Rhubarb Syrup for Tasty Spring Cocktails

June 5, 2019 (Last Updated: August 13, 2020) - As an Amazon Associate I earn from qualifying purchases.

This Rhubarb Syrup is Springtime in a bottle! It brings a bit of Spring flavor to any cocktail or recipe. It is easy, delicious, and a great way to use up some of that Rhubarb you want to use.

Rhubarb Syrup in a bottle on a picnic table with flowers laying around.

Spring is upon us and that means it is Rhubarb season is here! And when it rains, it pours in the world of Rhubarb. Well, if you have plants in your garden or just love some rhubarb, this Rhubarb Syrup might be just what the doctor ordered! We mostly use it as a simple syrup for cocktails, but it can be used for any other number of things, even as a sweetener for tea or oatmeal. This Rhubarb Syrup is just perfect for a cocktail and Springtime’s sweet lullaby into Summer heat.

Rhubarb Syrup Basics

This is not rocket science and that is why we are sidelining our Grilling series for today to make this simple and delicious syrup. We are taking this vegetable (because it is a vegetable) and infusing it into sugar water. It is as simple as that. A few things to consider when making this simple syrup are how thick do we want the syrup and how much of a rhubarb flavor do we want in the syrup.

By simmering this longer than the recipe recommendation, you are going to get a thicker syrup. Mind you, the syrup might not show the full thickness until it has cooled down. Right off of the stovetop, the liquid will be a bit more fluid and as it cools down, the true viscosity will be known. Of course, you can simmer it a second time to make it thicker AND give it a more concentrated rhubarb flavor.

You could also add more rhubarb to the mix, but our recipe gives a great balance of flavor, sweetness, and viscosity for a great cocktail mixer.

Chipped Raw Rhubarb

Straining cooked rhubarb

Rhubarb Season

I really like rhubarb, but the biggest problem is that when it is ready, there is a lot of it! You have to use it early in the season and it becomes less desirable as it starts to flower. So, if you want to get the most out of your rhubarb, this is a way to help. Oh, and if you make this, don’t get rid of that rhubarb mush that is left behind! It is great for ice cream or oatmeal.

Ideas For Cocktails With Rhubarb Syrup

Really, this could be substituted for any cocktail that calls for either a sugar cube (See Sazerac or Old Fashioned). This simple syrup could be translated into a nice riff on a mojito or just in a squirt into your drinking whiskey.

Fear not, we will be publishing a beautiful and tasty cocktail featuring this simple syrup in the near future. In the meantime, you now have a new way to use this beautiful Springtime vegetable.

Rhubarb Syrup on a Picnic table with pink flours and an empty coupe glass

If you like this recipe, make sure to let me know and also make sure to share this on Pinterest or Facebook. Also, we would love for you to sign up to get updates via email and follow us on Instagram.

Products I used In This Recipe


Rhubarb Syrup for Cocktails

Rhubarb Syrup in a bottle on a picnic table with flowers laying around.

This Rhubarb Syrup is a great sweetener for drinks, cocktails, or really anything that needs a bit of Springtime flavor!

  • Author: Ben Myhre
  • Prep Time: 20 minutes
  • Cook Time: 1 hour
  • Total Time: 1 hour 20 minutes
  • Yield: 32 Ounces 1x
  • Category: Cocktails
  • Method: Simmer
  • Cuisine: American


  • 6 cups fresh chopped rhubarb
  • 2.25 cups sugar
  • 2.25 cups water


  1. Add All ingredients to pot and bring to a boil
  2. Reduce to simmer for 50 minutes
  3. Remove from heat and allow to cool
  4. Strain
  5. Put into sealed container, store in fridge, and use within a month.

Keywords: Rhubarb Syrup

You Might Also Like


  • Reply
    Lori | The Kitchen Whisperer
    June 8, 2019 at 11:15 pm

    I’ve never had rhubarb but that may change! I’m loving the vibrancy of the syrup! Plus the recipe is so easy too!

    • Reply
      June 10, 2019 at 5:54 am

      Thanks so much Lori. Give it a try… it is a great recipe.

    Leave a Reply

    This site uses Akismet to reduce spam. Learn how your comment data is processed.