Actually very easy

Vanilla extract

The beliefThe sachet on the shelf is taken for vanilla, and the real thing for an unreachable luxury.

The truthTwo pods and a glass of vodka. After two months the jar lasts for years, topped up with more spirit as you go.

Ten minutes of work, two months of waiting

How to make it

What you need

2 vanilla pods
250 ml vodka or another neutral spirit at 35–40%
A dark glass bottle

How the engine read this list (2 lines)

—	Vanilla pods	vanilla
—	Vodka or a neutral spirit	no record

An empty weight means that line could not be turned into grams — either the amount is open ("to taste") or the ingredient has no record here. Neither enters the sum as zero; they do not enter it at all.

Split the pods lengthways and scrape the seeds out with the back of a knife, then put both the seeds and the pods in the bottle. Do not discard the pods: most of the aroma is in them.
Fill with spirit so the pods are fully submerged: any part exposed to air dries out and can mould.
Close it and keep it cool and dark. Shake it daily for the first week, then weekly.
Start using it after two months, when the colour is deep amber and the smell is dense. Three months is noticeably better.
Top it up with spirit as you use it. The pods keep giving for a year, and adding one new pod annually keeps the bottle going indefinitely.

Why it works

A vanilla pod’s aroma is not one molecule but the sum of more than two hundred compounds, with vanillin in the lead; a sachet of vanillin contains only that single molecule. Hence the difference: vanillin smells of vanilla but has no depth. Most of those compounds dissolve in alcohol rather than water, which is why extract is made with spirit. The strength of the solvent matters too — 35–40% is the window; weaker and the extraction is incomplete, stronger and the alcohol’s sharpness covers the flavour. The time cannot be shortened: the molecules move out of the pod by diffusion, and before two months the extract is thin. Splitting the pod to free the seeds increases the surface area and visibly speeds things up.

Diets it qualifies for

Gluten-free Vegan Vegetarian Lactose-free

Storage & shelf life

How long it keeps

Dark bottle, cool and dark: Indefinitely
Clear bottle in the light: 1 year, and the aroma fades
Fridge: Unnecessary
Spent pods, dried: 1 year

Alcohol is itself a preservative, so vanilla extract does not spoil — it ages, and the ageing is in the right direction: a one-year-old extract is deeper than a two-month-old one. The only real enemy is light, whose ultraviolet breaks the aroma compounds down and leaves the extract flat. If you have no dark bottle, a clear one in a cupboard is enough. The black sediment at the bottom is vanilla seed — not spoilage but a mark of quality.

When to bin it Cloudiness, threads or mould mean the alcohol has been diluted, almost certainly with water. Bin it: below 20% it no longer protects anything.

History

Where it comes from

Vanilla is Mexican in origin and belongs to the orchid family; because its natural pollinator lives only there, the plant bore no fruit anywhere else for centuries. Hand-pollination, discovered in 1841, took production to Madagascar and Réunion — every flower is still pollinated by hand, and that labour is why vanilla is the most expensive spice after saffron. It is not a traditional Turkish ingredient: the classic aromatics of muhallebi and rice pudding are mastic, rosewater and cinnamon. Sachet vanillin spread with republican-era home baking.

The knack

Never bin the pods. Dry the spent ones and grind them with sugar for vanilla sugar — nothing is wasted.
For an alcohol-free version, glycerine works — but it extracts less, so the result is weaker and keeps for less time.
In anything baked, the alcohol cooks off entirely — there is nothing left to worry about.

The pantry