Simple Syrup, Rich Demerara

A 2:1 rich syrup made with demerara sugar — twice the sugar to the same water as an ordinary Simple Syrup, and a light toffee-and-molasses note that sits directly on top of barrel-aged whiskey and aged rum.

🔴 A rich syrup is not interchangeable with a 1:1 syrup at the same volume, and this catches people out constantly. Swapping 2:1 for 1:1 at equal volume changes two things in the same direction at once — more sugar AND less pre-ice water — so the drink comes out both sweeter and hotter. If a cocktail you have made a hundred times suddenly tastes wrong and nothing else changed, somebody refilled the syrup bottle at a different ratio. Write the ratio on the bottle.

⭐ It also keeps far longer, and not for a vague reason: it is concentrated enough that there is not enough free water left for most spoilage organisms to work with. A 1:1 syrup is dilute enough to be a growth medium. This one will sit in the fridge for months.

Ingredients

• 2 cups demerara or turbinado sugar
• 1 cup water
• 1/2 oz vodka or other neutral spirit (optional, for keeping)

Directions

1. Heat the water — hot, but off a full boil.
2. Add the sugar and stir until the liquid goes clear rather than merely thin. That is the tell; a syrup that still looks cloudy has undissolved sugar in it.
3. Do not boil hard and do not reduce. The ratio you measured is the ratio you want; boiling water off changes it.
4. Cool completely, then bottle.
5. If you want it to keep for months, add the half-ounce of neutral spirit. It costs nothing in flavour.
6. Label the bottle with the ratio and the date.

Notes

By volume or by weight? Bar recipes generally mean by volume; home recipes often mean by weight, and they are not the same — granulated sugar is about 0.85 g per ml, so 1:1 by volume is roughly 46% sugar by mass while 1:1 by weight is 50%. Small enough to ignore in one drink, large enough to matter across a batch. Pick one convention and write it on the bottle.

What it delivers. About 7 g of sugar and only ~2.5 ml of water per 1/3 oz, against about 5 g and 5 ml for a 1:1 simple.

⚠ Cloudiness is the tell that it has gone off. A syrup that goes from clear to hazy in the fridge has started to spoil, whatever it smells like. Throw it out. Small batches, made often, is the whole answer.

Where to use it: aged rum, cognac, rye, and anything where a light molasses note is welcome. For a clean bourbon Old Fashioned where you want the whiskey to be the only flavour, use plain white 1:1 instead — white sugar’s whole virtue is that it contributes nothing but sweetness and body.