Making Elderflower Cordial from Hedgerow Flowers

Why Elderflower Deserves a Place in Your Kitchen

Come late May, the hedgerows around the smallholding start to look as though someone has shaken icing sugar over them. Elderflower is one of the great free harvests of the British countryside, and if you have even a modest patch of land — or a lane within walking distance — you can turn a few carrier bags of blossom into something far better than anything you will find on a supermarket shelf.

Elderflower cordial is the classic use, and rightly so. Diluted with cold water or sparkling water, it makes a genuinely refreshing summer drink, and it also lifts gooseberry fools, poached fruit, and gin. Best of all, it costs very little and takes an afternoon from picking to bottling.

Identifying and Choosing the Right Flowers

Elder (Sambucus nigra) is a scrubby, untidy shrub or small tree that grows almost everywhere in Britain: hedgerows, railway embankments, the edges of woodland, and waste ground. The leaves are pinnate, with five to seven oval, sharply toothed leaflets, and they have a distinctive, slightly rank smell when crushed. Do not rely on the leaves alone, though. Wait for the flowers.

From late May to early July, elder produces large, flat, creamy-white heads of tiny flowers, known as umbels. They have a sweet, musky, almost honeyed scent that is unmistakable once you know it. Later in the year those heads turn into clusters of small, dark purple-black berries, which must never be eaten raw.

A few rules will keep you safe and keep the cordial tasting its best:

• Pick only from clean sites. Avoid busy road verges, sprayed field margins, and anywhere dogs are regularly walked. If it is within a metre of a lay-by, leave it.
• Pick on a dry morning, ideally after a dew has dried but before the sun gets hot. Damp flowers go mouldy quickly; flowers picked in full sun lose much of their fragrance.
• Choose fully open heads, with all the tiny florets showing and no brown edges. Buds give less flavour; old flowers taste dusty and bitter.
• Shake every head gently before it goes in the bag. This dislodges beetles, flies, and the odd small spider — far easier than picking them out later.
• Leave plenty behind. Take no more than a third of the heads from any one bush, so the birds still get their autumn berries.
• Never pick from a bush that has already been stripped, and always have permission if you are not on your own land.

Take a light basket or a paper carrier bag rather than a plastic one — flowers sweat and bruise in plastic, and bruised elderflower starts to smell of cat.

The Ingredients and Why Each One Matters

The traditional recipe is beautifully simple, but each ingredient is doing real work. For roughly two litres of cordial you will need:

• About 25 to 30 large elderflower heads, picked over and any thick stalks removed
• 1.5 kg of granulated or caster sugar
• 1.5 litres of water
• 2 unwaxed lemons, zest pared in strips and the fruit sliced
• 50 g of citric acid

The lemons add the tartness that balances all that sugar, and their zest brings a clean citrus note. The citric acid is not optional if you want cordial that keeps: it lowers the acidity enough to stop moulds and yeasts gaining a hold, and it sharpens the flavour. It is sold in most independent chemists, homebrew shops, and some large supermarkets. If you simply cannot find it, you can bottle and freeze the cordial instead, but it will only last a fortnight in the fridge.

Steeping, Straining and Bottling

Put the sugar and water into your largest pan and warm it gently, stirring until the sugar has completely dissolved. You do not need to boil it — a gentle heat is plenty.

Take the pan off the heat and add the lemon zest, lemon slices, citric acid, and elderflower heads. Push the flowers down into the syrup with a clean spoon so they are all submerged. Cover the pan with a lid or a clean tea towel and leave it somewhere cool for 24 hours, or up to 48 if the weather is cool and you want a deeper flavour. Any longer and it starts to taste stewed and slightly cabbagey.

Next day, line a colander with a double layer of muslin or a clean, well-boiled jelly bag and set it over a large bowl. Ladle in the flowers and syrup and let it drip through undisturbed. Do not be tempted to squeeze the bag, however tempting the last few drops look — pressing the flowers releases bitterness and cloudiness.

Funnel the clear cordial into sterile bottles. Glass swing-top bottles are ideal, but any thoroughly washed bottle will do; sterilise them in a low oven or with sterilising solution and let them cool and dry completely first. Label with the date, and store in a cool, dark cupboard. It will keep for several months unopened and for a month or so once opened in the fridge.

Serving, Variations and Other Uses

Dilute roughly one part cordial to five or six parts water, to taste. Cold sparkling water, a squeeze of lime, and plenty of ice makes a drink that puts most commercial soft drinks to shame. For a grown-up version, add a measure of gin or vodka and a sprig of mint.

Once you have the basics, it is worth experimenting:

• Add a teaspoon of rosewater to the finished cordial for a delicate floral edge.
• Swap one lemon for a lime for a brighter, more tropical note.
• Use the cordial in the kitchen — drizzle it over poached gooseberries, rhubarb, or a plain sponge, or use it to sweeten a jug of Pimm's.
• Freeze it in ice cube trays to drop into drinks without diluting them.

A Few Final Points from Experience

Timing is everything. Elderflower season is short — often only three or four good weeks in any one spot — so make two or three batches rather than one enormous one. The flavour is best in the first flush of blossom, and flowers picked after heavy rain are never quite as fragrant.

If you have elder growing on your own land, resist the urge to tidy it all away. A mature elder will give you flowers in June, berries for wine, jelly and the birds in September, and hollow stems that make excellent pea sticks and kindling. It is one of the most generous shrubs a British smallholder can have, and a few bottles of cordial on the pantry shelf are its way of saying thank you.