If you are looking for an elderflower syrup recipe that keeps the bright floral taste of fresh elderflowers, this homemade elderflower syrup — also known as elderflower cordial — is one of the easiest ways to preserve that short early-summer flavor without turning your kitchen into a chemistry lab with sticky countertops.

Elderflower season does not last long. The flowers are at their best for a short window, and of course that window usually arrives exactly when you also have laundry, work, meals, and a child asking for something every four minutes.

That is where syrup becomes useful.

Unlike socată, which is fresh, lightly fermented, and fizzy, elderflower syrup is concentrated, sweet, heated, bottled, and easier to store. It gives you that floral elderflower flavor later, when the fresh flowers are gone and you still want something summery in a glass of sparkling water.

Elderflower Syrup vs. Socată: What Is the Difference?

Both recipes start with elderflowers, water, lemon, and sugar, but the result is different.

Socată is a traditional Romanian elderflower soda. It is lightly fermented, naturally fizzy, and usually enjoyed fresh. It tastes bright, floral, lemony, and alive — in the best way.

If you want that version, start here: Elderflower Soda Recipe: Traditional Romanian Socată.

Elderflower syrup, or elderflower cordial, is more concentrated. It is infused first, then strained, mixed with sugar, briefly boiled, and poured hot into sterilized bottles. You dilute it before drinking.

Even though socată and syrup start from the same basic elderflower flavor, they do not taste the same in the glass. Diluted syrup will not become socată just because you add sparkling water. Socată has that fresh, lightly fermented, fizzy taste. Syrup is sweeter, smoother, more concentrated, and more cordial-like. You can enjoy both, but you will not confuse them.

Use elderflower syrup in:

  • sparkling water
  • lemonade
  • iced tea
  • hot tea
  • mocktails
  • cocktails
  • yogurt
  • cakes and desserts
  • fruit salads

Socată is for drinking fresh. Syrup is for keeping the season in a bottle for a little longer.

Ingredients

This recipe makes a sweet, concentrated elderflower syrup that can be diluted with still or sparkling water.

  • 15–20 large fresh elderflower heads
  • 2 liters water
  • 1.5 kg sugar
  • 2 large lemons, preferably organic
  • 1 teaspoon citric acid, optional

A Quick Note About Elderflowers

Fresh elderflowers give the brightest flavor. Pick them on a dry day, ideally late morning, when they are open, fragrant, and not wet from rain or dew.

Choose flower heads that smell sweet and floral. Avoid brown, wilted, dusty, or roadside flowers. Elderflowers are lovely, but they are also excellent at collecting whatever the environment throws at them. Charming, yes. Magical, maybe. Immune to car exhaust, absolutely not.

Close-up of freshly harvested elderflowers with tiny white blossoms, used for traditional Romanian socată

Shake the flowers well to remove tiny insects. Do not wash them unless you really need to, because washing can remove much of the pollen and aroma.

How to Make Elderflower Syrup

1. Prepare the Elderflowers

Shake the elderflower heads gently but thoroughly to remove insects. Trim away thick stems if needed. A few small stems are fine, but avoid using large green stems, as they can add bitterness.

Do not wash the flowers unless they are visibly dirty. If you must rinse them, do it quickly and gently, then use them right away.

2. Infuse the Flowers and Lemons

Place the elderflowers in a large clean pot, bowl, or food-safe container.

Slice the lemons and add them over the flowers. If the lemons are not organic, scrub the peel well first, or remove most of the peel to avoid bitterness and waxy residue.

Pour 2 liters of water over the flowers and lemons.

Cover the container and leave it to infuse for 24–48 hours in a cool place.

A shorter infusion gives a lighter flavor. A longer infusion gives a stronger floral taste, but do not push it too far.

3. Strain the Infusion

After the infusion time, strain the liquid through a fine sieve, cheesecloth, or clean kitchen cloth.

Press gently to extract the liquid, but do not crush everything aggressively.

You should be left with a fragrant elderflower-lemon infusion.

4. Add Sugar and Citric Acid

Pour the strained liquid into a large pot.

Add the sugar and stir well. Add the citric acid if using.

Citric acid helps sharpen the flavor and can support preservation, but it is optional. Lemon already adds acidity, though the final balance depends on the lemons and the flowers.

5. Heat Until the Sugar Dissolves

Warm the mixture over medium heat, stirring until the sugar fully dissolves.

Do not walk away at this point unless you enjoy cleaning sticky syrup from the stove. Sugar has a talent for drama.

6. Boil Briefly

Once the sugar has dissolved, bring the syrup to a boil.

Boil for 8–10 minutes.

This helps finish the syrup and gives it a more stable texture. Keep the heat controlled so the syrup does not foam over.

7. Bottle the Syrup Hot

Pour the hot elderflower syrup into sterilized glass bottles.

Seal them immediately and let them cool at room temperature.

Use clean, heat-safe bottles and caps. If you already have a guide for sterilizing jars and bottles, this is the place to follow it properly. Syrup is not the moment for “eh, it looks clean enough.” That sentence has ruined many good intentions.

Can You Use Frozen or Dried Elderflowers?

Yes, but the result will be slightly different.

Fresh Elderflowers

Fresh elderflowers are the best choice for syrup. They give the most floral, bright, classic elderflower cordial flavor.

Frozen Elderflowers

You can use frozen elderflowers if they were frozen fresh, clean, and fragrant. Add them directly from the freezer without thawing. Thawing first can make them collapse into a sad little floral sponge, and nobody needs that.

For more details, read How to Preserve Elderflowers: Freezing for Socată and Drying for Tea.

Dried Elderflowers

Dried elderflowers can also be used, but the flavor will be different. Expect a more herbal, tea-like syrup, with less of that bright fresh-flower note.

It can still be useful, especially for tea, desserts, or winter drinks, but it will not taste exactly like syrup made with fresh flowers.

How to Store Elderflower Syrup Safely

Store sealed bottles in a cool, dark place.

After opening, keep the bottle in the refrigerator and use it within a reasonable time.

I prefer not to give dramatic promises like “this lasts forever,” because homemade preserves depend on many things: cleanliness, bottle sterilization, sugar concentration, acidity, storage temperature, and whether the bottle was opened.

Before using, always check:

  • smell
  • color
  • texture
  • mold
  • fizzing or pressure in a bottle that should not be fermenting
  • anything that looks or smells wrong

If something seems off, do not taste-test your way into regret. Throw it away.

For more seasonal syrup inspiration, you may also like Fir Syrup: Benefits and Easy Homemade Recipe.

How to Use Elderflower Syrup

Elderflower syrup is concentrated, so dilute it before drinking.

Start with:

  • 1–2 tablespoons syrup per glass
  • cold sparkling water or still water
  • ice
  • lemon slices
  • mint, optional

Then adjust to taste.

You can also use elderflower syrup in:

  • lemonade
  • iced tea
  • herbal tea
  • cocktails or mocktails
  • panna cotta
  • sponge cakes
  • yogurt bowls
  • fruit salads
  • homemade popsicles

It is especially good with lemon, strawberry, raspberry, mint, cucumber, and sparkling water.

Basically, if something tastes like summer and needs a floral little push, elderflower syrup can probably help.

Troubleshooting

My Syrup Tastes Weak

The flowers may have been too old, too wet, or not fragrant enough. Elderflowers need to smell floral before you use them. If they smell like almost nothing, the syrup will also taste like almost nothing, but sweeter.

Next time, pick fresher flowers and use them the same day.

My Syrup Tastes Bitter

Bitterness can come from too many thick green stems, lemon peel, over-infusion, or poor-quality flowers.

Use mostly flower heads, keep large stems out, and do not let the infusion sit too long.

My Syrup Is Too Sweet

It is supposed to be sweet because it is a syrup, not a ready-to-drink beverage.

Dilute it more when serving. Add extra lemon juice in the glass if you want a sharper drink.

My Syrup Started Fermenting

If a sealed syrup bottle becomes fizzy, pressurized, smells strange, or looks cloudy in a worrying way, do not use it.

Fermentation can happen when bottles are not properly sterilized, the syrup is undercooked, the sugar or acidity balance is off, or storage is too warm.

When in doubt, discard it.

Elderflower syrup is one of those recipes that makes seasonal preserving feel doable. You do not need special equipment, complicated techniques, or a pantry that looks like a countryside magazine spread.

You need good flowers, clean bottles, sugar, lemon, and a bit of attention.

Socată gives you the fresh, fizzy joy of elderflowers right now. Syrup lets you keep that flavor for later — in sparkling water, lemonade, tea, desserts, or whatever you drink while pretending you are not also eating bread over the sink.

Both have their place. That is the beauty of elderflower season: it is short and fragrant. Use it while it is here.

🍲 Cook simply. Eat seasonally. Make it yours. #SimplifyWithLela 🍲