HERBAL APOTHECARY
RECIPES

The 3-Herb Winter Immunity Syrup

Every Australian family should make in May
Kura Health · 8 min read

Most families reach for elderberry syrup in July, when half the household is already sniffling and the school has sent home another gastro alert letter. By then, you're managing symptoms — not preventing them. The window that actually matters is now. May is when you build the fortress, not when you're already under siege.

I made my first batch of elderberry syrup a couple of winters ago, when I first started studying herbal medicine. My husband had just shaken off his first cold of the season, and I thought other than my Flu tonic there had to be another herbal remedy.

What I landed on wasn't just elderberry. It was a three-herb combination. This is that recipe with the why behind each ingredient, the exact ratios we use, dosage for kids and adults, and the two mistakes I made early on that are worth you skipping.

Kura Family Recipe

3-Herb Winter Immunity Syrup

Prep
15 min
Cook
45 min
Size
500ml
Shelf Life
6–8 wks
Ingredients
  • Dried elderberries (Sambucus nigra) 80g
  • Dried astragalus root, sliced 30g
  • Fresh ginger, grated (or 1 tsp dried) 1 tbsp
  • Cinnamon stick 1
  • Whole cloves 5
  • Filtered water 1 litre
  • Raw local honey (added after cooling) 150g
Method
  1. Combine elderberries, astragalus, ginger, cinnamon and cloves with the water in a medium saucepan.
  2. Bring to a gentle boil, then reduce to a low simmer. Simmer uncovered for 40–45 minutes until reduced by roughly half.
  3. Remove from heat. Cool to below 40°C before adding honey — this protects the enzymes. (Touch the pot: if it's warm but not hot, you're ready.)
  4. Strain through a fine mesh sieve, pressing the berries to extract all liquid. Compost the solids.
  5. Stir in raw honey until fully dissolved.
  6. Pour into a sterilised glass bottle or jar. Label with the date. Refrigerate immediately.

Prefer to Buy It Ready-Made?

Making the syrup from scratch is genuinely straightforward, but if you'd rather start with something you can open tonight, here are two products I'd actually recommend both of which use the same core herbs as this recipe.

Whole Family · Ages 1+

Sambucol Original Black Elderberry Syrup

Sambucol is the brand used in the most-cited elderberry clinical trials — meaning this isn't just convenient, it's the product with the most direct research support. Standardised to a consistent level of active anthocyanins, widely available at Chemist Warehouse and Priceline across Australia. A solid starting point for families who want to test the waters before committing to DIY.

Kids Specifically · Ages 2+

Herb Pharm Kids Immune Fortifier

This one is remarkable for how closely it mirrors the herbs in this recipe — elderberry, astragalus, echinacea, reishi and cinnamon, all certified organic, in an alcohol-free glycerite that kids actually like the taste of. Dosing is weight-based and clearly labelled. Recommended for ages 2+. Available on iHerb AU. Note: this product is formulated to US standards — check the label on receipt as it may vary slightly from what's listed online.

Dosage: Kids vs Adults

This recipe is suitable for children aged 2 and over. Under 2, the honey alone is a concern (risk of infant botulism under 12 months), and the astragalus component is less well-studied in very young children — please speak with your naturopath or GP before using herbal preparations with toddlers under 2. The dosages below align with standard herbal medicine guidelines for a food-grade preparation like this one.

Age / Weight Maintenance Dose (Daily Prevention) Therapeutic Dose (During Illness) Notes
Under 2 years Not recommended as written Not recommended as written Honey unsafe under 12 months; astragalus less studied in under-2s. Consult your practitioner.
2–3 years ½ teaspoon (2.5ml) once daily ½ teaspoon 3× daily Mix into warm water or diluted juice. Check with practitioner if any health concerns.
4–7 years 1 teaspoon (5ml) once daily 1 teaspoon 3× daily Most kids take this straight — it tastes good.
8–12 years 1–2 teaspoons (5–10ml) once daily 2 teaspoons 3× daily —
13+ / Adults 1 tablespoon (15ml) once daily 1 tablespoon 3–4× daily Increase to 4× daily at the first sign of illness.
Safety note — please read

This recipe is suitable for children aged 2 and over. It is not suitable for children under 2 as written. Elderberry and astragalus are both considered safe for general family use within these age guidelines, but this recipe is not a substitute for medical care. If your child has an autoimmune condition, is taking immunosuppressant medication, or you have any concerns, please consult your GP or a registered herbalist before using.

Important: Always use cooked or dried elderberries — never raw. Raw elderberries and elderberry leaves contain sambunigrin, which can cause nausea and vomiting. The simmer step in this recipe eliminates it. Pause the astragalus component during acute febrile illness and resume once fever has cleared. This post is for educational purposes and does not constitute medical advice.

Storage Guide

Refrigerator
6–8 weeks in a sterilised glass jar with a tight lid. The honey acts as a natural preservative — don't substitute with a plastic lid if you can avoid it.
Freezer
Freeze in ice cube trays, then transfer to a zip-lock bag. Each cube is roughly 1 tablespoon. Will keep 6 months. Thaw overnight in the fridge as needed.
Extend shelf life
Add 2 tablespoons of brandy or raw apple cider vinegar per 500ml at bottling. Extends to 3–4 months refrigerated. ACV version is fine for kids; brandy version is adults only.
Signs it's turned
Surface mould, cloudiness, or an off (fermented) smell. When in doubt, compost it. A new batch takes under an hour.
Batch size tip
This recipe yields ~500ml. For a family of four through a full winter, I make two batches in May and two in June. Total active cooking time: under 4 hours for the season.

Two Mistakes Worth Avoiding

I made both of these in my first year. They're easy to avoid once you know about them.

Mistake 01

Adding honey to hot liquid

Raw honey is medicinal because it's alive — it contains active enzymes, defensin-1 (a naturally occurring antimicrobial peptide), and beneficial compounds that are destroyed above 40°C. Adding honey to hot syrup turns it into expensive sugar. Always wait until the liquid is warm but not hot before stirring it in. If in doubt, wait longer.

Mistake 02

Using blended or commercial honey

The honey you choose matters. Commercial "pure honey" sold in supermarkets is frequently heat-treated (to prevent crystallisation) and sometimes blended — neither of which is disclosed on labels. Look for honey labelled "raw" specifically, from an Australian producer you can trace. Beechworth Raw, local farmers markets, and some co-ops stock reliable options. It costs more. It's worth it.

Common Questions

  • This recipe is not recommended for children under 2, for two reasons. First, raw honey is unsafe for babies under 12 months due to the risk of infant botulism. Second, the astragalus component is less studied in children under 2. For toddlers aged 2-3, the recipe is generally considered appropriate, but check with your naturopath or GP first.

  • The most reliable sources for food-grade dried elderberries (Sambucus nigra) in Australia are iHerb AU (ships domestically), Austral Herbs, and Flannerys. Always confirm the species is Sambucus nigra.

  • Yes, you will still have a very good elderberry syrup. But the reason I include astragalus is that it works through a completely different pathway to elderberry (immune modulation vs antiviral activity), and its effects are cumulative over weeks.

  • For prevention, a daily maintenance dose throughout winter is the goal. This is consistent with how most elderberry and astragalus research is structured. If someone in the household gets sick, increase to the therapeutic dose.

  • 6-8 weeks in a sterilised glass jar. The honey acts as a natural preservative. If you want to extend shelf life, add 2 tablespoons of raw apple cider vinegar per 500ml at bottling. This extends it to around 3 months.

  • You can, but it defeats part of the purpose. Commercial honey is heat-treated during processing, which destroys the active enzymes and antimicrobial compounds that make raw honey a functional ingredient rather than just a sweetener.