Oleo Saccharum

What is oleo saccharum?

The name sounds like a secret doctrine, but it is old and honest: "oleum" means oil, "saccharum" means sugar, so simply "oil sugar". It refers to an age-old technique for extracting the aromatic oils from citrus peels and preserving them in sugar.

The result is a glossy, golden, oily and aromatic syrup that tastes intensely of whichever citrus you used: lemon, orange, lime or grapefruit, exactly as you wish. Some call it "liquid citrus gold", and that is hardly an exaggeration.

How does the technique work?

The preparation is surprisingly simple:

1. Peel the fruit: the coloured outer layer of the citrus is peeled off thinly, the white pith stays out
2. Mix with sugar: the peels are mixed thoroughly with sugar and pressed lightly so the sugar sticks everywhere
3. Wait: the mixture rests, anywhere from half an hour to overnight. The sugar draws the essential oils out of the peels through the cell walls, and moisture and oil emerge and combine with the sugar into a syrup
4. Strain: the peels are removed, and the oleo saccharum is ready

The trick behind it: sugar is hygroscopic, it attracts moisture. Combined with the crushing of the peels, the cell walls open, and the oils migrate into the sugar. The aromas that a twist only sprays over a drink once are here captured and stored for later.

What is oleo saccharum used for?

• Punch: the classic. Historical punch recipes are built on oleo saccharum as their aroma and sugar base
• Cocktails: as a substitute for simple syrup, it instantly gives any drink more citrus depth
• Lemonades and spritzers: a spoonful in the glass turns simple sparkling drinks into small events
• Desserts and baking: in the kitchen too, this oil sugar gives plain grated zest a run for its money

Especially practical: since the aroma has moved into the sugar, you can flavour drinks that should not take any citrus acid at all. Aroma yes, acid no.

What does it taste like?

Oleo saccharum tastes like the concentrated essence of the citrus fruit: sweet, intense, and with a depth plain simple syrup never reaches. In a drink it works rounder and fuller than freshly grated peel, because the oils are completely integrated. Anyone who has ever had a punch made with real oleo saccharum will notice the difference immediately.

An age-old technique with a future

Oleo saccharum comes from the era of the classic punch and has been passed down in recipes for centuries. In recent years, modern bars have rediscovered it because it solves two problems at once: it delivers maximum aroma and reduces waste, since the spent peels find a second purpose here. This is sustainability you can literally taste.

At our lounge

If one of our drinks tastes particularly deep and rounded of citrus, chances are oleo saccharum was involved. Feel free to ask our team at the bar, we love preparing things like this in advance and we love talking about it just as much. And for your next party at home: peels, sugar, patience, done. Few techniques offer a better ratio of effort to wow effect.