Preserves & pantry

How to Make Preserved Lemons

Preserved lemons — l'hamd markad — are the ingredient that makes a chicken tagine taste unmistakably Moroccan. Whole lemons are packed in salt and left to cure in their own juice for weeks until the rind loses all its bitterness and turns soft, glossy and deeply perfumed, with a mellow salty-sour flavour you cannot get any other way. They need just two ingredients and almost no work — only time.

Difficulty: Easy
Active time: 20 min, then 3–4 weeks curing
Yields: One jar of preserved lemons
Best tool: A sterilised glass jar

What you need

Unwaxed lemons — thin-skinned if you can get them (Beldi/Doqq lemons in Morocco)
Plenty of coarse salt
Extra lemon juice to top up and submerge
A clean, sterilised glass jar with a tight lid
Optional aromatics: a cinnamon stick, bay leaf, peppercorns, cloves

Why it matters

Preserved lemon is a cornerstone of the Moroccan larder — the essential partner to green olives in chicken tagine, a lift in fish dishes and chermoula, a bright note in salads and dressings. The salt cure does something no fresh lemon can: it breaks down the harsh bitterness of the pith and peel, softens the rind to a tender, almost jammy texture, and concentrates a rounded, funky citrus perfume. It is the rind you use, not the flesh.

It is also the ultimate low-effort preserve. Salt and acid together create an environment where spoilage organisms cannot survive, so a properly packed, submerged jar keeps for a year or more at room temperature with no canning, no processing and no skill beyond cleanliness. A jar made today is your seasoning for months of cooking.

Step-by-step method

1

Sterilise the jar

Wash a glass jar and its lid in very hot water and dry them in a low oven, or scald with boiling water. Cleanliness is the only real risk point in this preserve, so start spotless.
2

Cut the lemons open, not through

Scrub the lemons. Sitting each on its base, cut down through it in a cross — quartering it lengthwise but stopping short of the bottom so the quarters stay joined at the base, like a flower that opens but holds together.
3

Pack the cuts with salt

Open each lemon out gently and pack coarse salt generously into the cuts and over the flesh, then close it back up. The salt drawn into the fruit is what drives the cure.
4

Layer into the jar with more salt

Put a spoon of salt in the base of the jar, then press the salted lemons in tightly, layer by layer, adding more salt and any aromatics between layers. Push down hard as you go so they release their juice and pack without air gaps.
5

Submerge in juice

The lemons should be completely covered in liquid. They will release a lot of juice as you press, but top up with extra fresh lemon juice until every piece is submerged. Anything above the liquid line can spoil.
6

Cure at room temperature

Seal and leave at cool room temperature for three to four weeks, turning or gently shaking the jar every few days to redistribute the salt and juice. The rind will slowly soften and the liquid may thicken slightly.
7

Know when it is ready, and store

It is ready when the rind is soft enough to cut with no resistance and the harsh bitterness is gone, usually after a month. Once opened, keep it in the fridge; sealed and submerged, it lasts a year or more.

Common mistakes

Not fully submerging the lemons. Any rind above the salty juice can grow mould. Weigh them down or top up with more juice so everything stays under the liquid.
Using too little salt. Salt is the preservative here; be generous. A timid amount risks spoilage and an under-cured, still-bitter rind.
Waxed lemons. The wax coating blocks the cure and is not something you want to eat. Use unwaxed, or scrub waxed ones hard in hot water first.
A dirty jar or wet spoon. Introducing bacteria is the one way this preserve fails. Sterilise the jar and always use a clean utensil to lift lemons out.
Rushing it. Under three weeks and the rind is still bitter and firm. Give it the full month; it only improves.
Eating the salty flesh in cooking. Traditionally you rinse and use the rind, discarding most of the pulp — the pulp is intensely salty and can be scooped out.

Tips

A white, harmless film or slight thickening of the brine is normal; fuzzy or coloured mould on exposed fruit is not — that batch should be discarded.
Small thin-skinned Beldi lemons give the softest, most fragrant result, but unwaxed supermarket lemons work well.
The leftover salty lemon juice in the jar is a seasoning in itself — a splash brightens dressings, marinades and cooked greens.

Recipes and dishes that use this

Frequently asked questions

How do you make preserved lemons?

Cut lemons in a cross almost to the base, pack coarse salt into the cuts, press them tightly into a sterilised jar with more salt, and submerge them completely in lemon juice. Leave at room temperature for three to four weeks until the rind is soft and mellow.

How long do preserved lemons take?

About three to four weeks to cure. They are ready when the rind cuts softly with no resistance and the harsh bitterness has gone. They keep improving and, kept submerged and sealed, last for a year or more.

Do you eat the whole preserved lemon?

Mostly you use the softened rind, which holds the flavour. Many cooks rinse it and scrape away and discard the very salty pulp before chopping the peel into tagines, salads and dressings.