
Elderflower cordial is a non-alcoholic sweetened syrup flavoured by steeping fresh elder (Sambucus nigra) flowers in sugar and water.
Pronounced floral aroma of elder blossom over a high, clean sweetness, with only a faint citric tartness and no bitterness.
Serving as a floral sweetening accent and lengthener, it is built or shaken in small measures to add elderflower aroma and sugar together; where the flower is the point of the drink it is effectively the defining flavour rather than an interchangeable sweetener.
Its sweetness and syrupy body can be rebuilt with plain sugar syrup, but the elderflower floral aroma cannot be reproduced from an unrelated sweetener — only another elderflower product (such as elderflower liqueur, adjusting for its alcohol) preserves the character, and where that floral note defines the drink there is no true substitute.
Elderflower cordial is a non-alcoholic sugar syrup meant for dilution; elderflower liqueur is a spirit-based alcoholic product carrying the same floral aroma. The near-identical names lead bar recipes to call for one when the other is meant.
Elderflower cordial takes elderflower heads infused into a hot sugar syrup, usually with citric acid or lemon added as an acidulant and preservative, then strained to a clear sweet concentrate. In its usual form it carries no distilled spirit and is diluted with still or sparkling water before drinking, which separates it from alcoholic elderflower liqueur.
Being a sugar-and-water infusion, it is perishable once made or opened and prone to fermentation or mould; keep refrigerated.
A traditional flavoured syrup of Britain and northern and central Europe, where elder grows widely and its flowers are gathered in early summer.