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Fennel Simple Syrup

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Last Updated on January 26, 2024 by Leah Hall

An herbal fennel simple syrup.


One of our favorite things about having our own garden is the chance to experiment growing different herbs and vegetables. Having an extensive herb garden also gives us the opportunity to make some really fresh and unique syrups.


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syrup in jar with fennel fronds, wooden bowl of sugar

Fennel Simple Syrup

One of the syrups we made uses an herb that stars in Italian food, fennel, which is typically found in savory food. Fennel simple syrup has become one of our favorite flavored syrups to use in cocktails.


Fennel is a root vegetable that grows tall frilly fronds out of a green or white bulb, full of flavor. The flavor is reminiscent of licorice and anise, which works really well with acid flavors like tomatoes (hence why it is commonly found in Italian food) but it also works really well with citrus flavors, which means it can be a very versatile flavor in cocktails when it is infused into a fennel simple syrup.


Fennel is also extremely aromatic, meaning that the fennel simple syrup can add a wonderful aroma to a drink.

syrup in jar with fennel fronds, wooden bowl of sugar

We used fresh fennel for our syrup, choosing to use the bulb part of the fennel as we wanted a clean clear syrup. You can use the fennel fronds, but they tend to have lots of delicate green pieces that can be hard to strain out, plus they may impart a green tint to your syrup.

We also loved the delicate flavor the fresh fennel imparted to the fennel simple syrup that compliments the flavors in drinks with out dominating them. We have used it in sodas and cocktails, so feel free to break out of the ordinary and try a Fennel Simple Syrup.


Can Simple Syrups go bad?

They can get moldy if they sit too long. We encourage you to store it in the fridge in a jar but for no more than one to two weeks. We actually have a whole shelf of simple syrups in our fridge at any given time!

syrup in jar with fennel fronds, wooden bowl of sugar

How Do You Make Simple Syrup Last a While?

One trick that we use sometimes if we want to keep syrup fresher longer in the fridge is add a dash of vodka. Doesn’t change the flavor, but adds the alcohol to keep the mold or break down at bay!




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Like this recipe? Try these below, too!

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Other Simple Syrup Recipes

syrup in jar with fennel fronds, wooden bowl of sugar
Yield: 1

Fennel Simple Syrup

Prep Time: 10 minutes
Cook Time: 10 minutes
Total Time: 20 minutes

An anise flavored simple syrup using fennel.


Fennel Syrup

  • 1 cup sugar
  • 1 cup water
  • 1 medium bulb fresh fennel, chopped
  • dash of salt


Rough chop the fennel into small chunks.

Add sugar and water to a medium saucepan.

Heat to a boil, making sure all sugar is dissolved.

Remove from heat.

Add in fennel, allow to steep for a minimum of 15 minutes.

Strain out fennel pieces.

Store in a covered container in a refrigerator for up to 2 weeks.

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Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 145Total Fat: 0gSaturated Fat: 0gTrans Fat: 0gUnsaturated Fat: 0gCholesterol: 0mgSodium: 0mgCarbohydrates: 35gFiber: 0gSugar: 35gProtein: 0g

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Dan Bedrosian

Monday 4th of May 2020

I put the strained fennel pieces in a bowl and they were very tasty. I probably ate too much of them. I'll try the simple syrup in a cocktail later tonight - maybe an old fashioned.

The 'Noms.

Monday 4th of May 2020

Haha, they are pretty good candied, aren't they!? Hope you enjoy, cheers!

Melanie Austin Delude

Wednesday 17th of August 2016

This sounds amazing! What a unique recipe, will be trying it soon!

The 'Noms.

Wednesday 17th of August 2016

We thought it was a great use of fennel! Hope you try it!

The 'Noms.

Wednesday 17th of August 2016

Thank you! We thought it was a great use of fennel! Hope you enjoy it!

Patricia Conte

Tuesday 16th of August 2016

So in love with this - how awesome! I love fennel, and can't wait to try this!

The 'Noms.

Wednesday 17th of August 2016

Thanks so much! It is such a unique flavor, hope you try it out!

Dr. Daisy

Tuesday 16th of August 2016

Interesting..I've never had fennel syrup but sounds delicious..thanks for sharing :)

The 'Noms.

Wednesday 17th of August 2016

It is a very unique flavor, and is great mixed with other things! Thanks for stopping by!

Chrissa - Physical Kitchness

Monday 15th of August 2016

I only discovered fennel last year. And I love it. That licorice-ish flavor totally has me. I LOVE this recipe for a simple syrup you could use in so many cocktails!

The 'Noms.

Wednesday 17th of August 2016

Agreed! It is such a unique flavor! We have many plans for this recipe!

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