How to Make Piccalilli: A Classic UK Recipe

What exactly is piccalilli?

Piccalilli is one of Britain's great store-cupboard pickles: a jumble of crunchy diced vegetables suspended in a thick, glossy, mustard-yellow sauce. The flavour is sharp and tangy up front, warm with mustard and ginger underneath, and the colour comes from a good spoonful of turmeric. It sits somewhere between a pickle and a relish, and it has been a fixture on British tables for a couple of centuries, usually next to cold meats and cheese.

The point of piccalilli is contrast. You want the vegetables to stay firm and a little squeaky against a sauce that clings to them. Get that right and it's genuinely one of the most satisfying things you can make from a summer glut.

How is piccalilli different from chutney and plain pickling?

This trips a lot of people up, so it's worth pinning down. All three are ways of preserving vegetables with vinegar, but they behave completely differently.

Chutney is slow-cooked and mellow. You simmer fruit or veg with vinegar and sugar for an hour or more until everything breaks down into a soft, dark, jammy relish. The texture is smooth and spreadable, and the flavour is deep and rounded. If you fancy that route instead, our chutney guide walks through it.

Plain pickling keeps whole or sliced vegetables in a clear spiced vinegar, think pickled onions or gherkins. The veg stay crunchy, but the liquid is thin and the flavour is mostly sharp vinegar and spice. Our guide to pickling vegetables covers that method.

Piccalilli borrows from both and lands in the middle. Like a pickle, the vegetables stay crunchy and distinct. But instead of a thin vinegar, they're bound in a thickened, mustard-and-turmeric sauce, closer in body to a chutney. So you get crisp veg AND a coating sauce, which is exactly the combination that makes it so moreish.

Chutney cooks its veg into softness. Piccalilli barely cooks them at all, so they stay crunchy in a thick, spiced sauce.

Which vegetables go in piccalilli?

The traditional heart of piccalilli is cauliflower, broken into small florets. Around that, the classic mix adds:

• Onions or shallots, peeled and diced small (silverskin or pickling onions are lovely if you can get them)
• Cucumber or courgette, deseeded and cut into chunks
• Green beans or runner beans, topped, tailed and cut into short lengths

That's the traditional four, and it's a brilliant way to use up a late-summer or autumn glut. Beyond the classics you can throw in carrot, green tomatoes, peppers or a little celery, whatever the garden or allotment is giving you. The one rule that matters is size: cut everything small and even, roughly the same dice, so it salts, pickles and matures at the same rate. A ragged mix of big and small pieces gives you some bits that are soggy and some that are barely touched.

Aim for around 1kg of prepared vegetables for a manageable batch of a few jars.

Why salt the vegetables first, and how?

This is the step that separates good homemade piccalilli from a watery, disappointing one, so don't skip it. Raw vegetables are full of water. If you cook them straight into the sauce, that water leaches out over the following weeks, softens the veg and thins your carefully thickened sauce until it splits.

Salting fixes this before it starts. You toss the diced vegetables with salt, cover the bowl, and leave them somewhere cool. River Cottage uses 50g of fine salt to 1kg of veg and leaves it for a full 24 hours; overnight is the minimum. Over that time the salt draws water out of the vegetables by osmosis, so they firm up and give up the moisture that would otherwise ruin the texture.

The next morning, tip the veg into a colander and rinse them thoroughly under cold water, then drain and pat dry. This matters. If you don't rinse well, the piccalilli comes out far too salty. Rinse, drain, and let them sit while you make the sauce.

How do you make the mustard-turmeric sauce?

The sauce is a spiced vinegar cooked out and thickened until it coats the back of a spoon. The building blocks are:

• Vinegar: malt or cider vinegar, at least 5% acidity. Cider gives a rounder, slightly fruity note; malt is more traditional and robust. River Cottage uses around 600ml cider vinegar for a 1kg batch.
• Sugar: granulated, roughly 150g, to balance the sharpness. Add a little more if you like it milder, rather than watering down the vinegar.
• English mustard powder and yellow mustard seeds for that unmistakable hit.
• Ground turmeric for the bright yellow colour and its earthy warmth.
• Ground ginger for a gentle background heat.
• Cornflour (and/or a little plain flour) to thicken it into a sauce.

Method-wise, mix the cornflour, mustard powder, turmeric, ginger and mustard seeds to a smooth paste with a splash of the cold vinegar. Bring the rest of the vinegar and the sugar to the boil in a pan, then whisk in the paste. Let it bubble for a few minutes, stirring, so the raw flour taste cooks out and the sauce thickens. You're looking for a glossy sauce thick enough to coat a spoon, not a thin liquid.

How do you put it all together?

1. 1

   Salt the veg overnight

   Cut all the vegetables small and even. Toss with fine salt (about 50g per 1kg), cover, and leave somewhere cool for up to 24 hours to draw out the water.

2. 2

   Rinse and drain well

   Tip into a colander, rinse thoroughly under cold water to remove the salt, then drain and pat dry. Don't rush this or the pickle will be too salty.

3. 3

   Make the spiced sauce

   Blend cornflour, mustard powder, turmeric, ginger and mustard seeds to a paste with a little cold vinegar. Boil the rest of the vinegar with the sugar, whisk in the paste, and simmer a few minutes until it thickens and the raw flour taste cooks out.

4. 4

   Cook the veg just enough

   For maximum crunch, fold the raw drained veg straight into the hot sauce. If you prefer them a touch softer, blanch the cauliflower and beans in the sauce for two or three minutes first. Either way, keep them firm.

5. 5

   Fold together

   Stir the drained vegetables through the hot sauce so every piece is coated. It should look thick and glossy, not runny.

6. 6

   Pot into sterilised jars

   Spoon the hot piccalilli into hot, sterilised jars, pressing out air pockets. Seal immediately with vinegar-proof lids and label with the date.

7. 7

   Mature for 4-6 weeks

   Store in a cool, dark cupboard and leave it at least a month before opening so the flavours mellow and mingle.

Is homemade piccalilli safe to make?

Piccalilli is a high-acid preserve, which makes it one of the safer things to bottle at home, but only if you respect the three rules that do the preserving. Don't treat these as optional.

That's the whole safety story: enough acidity, clean sterilised jars, and lids the vinegar can't attack. Get those right and piccalilli looks after itself on the shelf.

How long should it mature, and how long does it keep?

Resist the temptation to dig in straight away. Fresh from the pan, piccalilli tastes raw and harsh, with the mustard shouting over everything. Give it 4-6 weeks in a cool, dark cupboard and it transforms: the mustard settles, the spices marry, and the sauce mellows into that proper rounded tang.

Sealed properly, it keeps for months, up to a year, in a cool, dark spot. Once you open a jar, move it to the fridge and use it within a few weeks. Always dip in with a clean, dry spoon so you're not introducing crumbs or bacteria that could spoil the rest.

What do you serve piccalilli with?

This is where it earns its keep. Piccalilli is built for cold, rich, salty things that need a sharp foil. The classics:

• A proper pork pie, with a good dollop on the side
• Cold cuts of ham, gammon or leftover roast
• A ploughman's lunch with strong cheese, crusty bread and pickle
• Mature cheddar or a crumbly Lancashire on an oatcake
• Boxing Day cold-meats spreads, where it cuts through the richness beautifully

It also lifts a cheese toastie or a bacon sandwich no end. Once you've a few jars maturing in the cupboard, you'll find excuses.

Related guides

If you've caught the preserving bug, there's plenty more to try. Start with our guide to pickling vegetables for the simpler clear-vinegar method behind pickled onions and gherkins, then move on to making chutney for the slow-cooked, mellow end of the spectrum. Both use the same store-cupboard skills as piccalilli. You'll find the full run of methods on our preserving hub.