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Pickled Onions

Pickled Onions

Created by Chef Thomas

A jar of properly pickled onions, peeled at the kitchen table on an October afternoon and put away to mature in time for cold meat and good cheese at Christmas.

Sauces & Condiments
British
Make Ahead
Picnic
1 hr
Active Time
15 min cookPT1H15M plus overnight brining and six weeks maturing total
Yield2 large jars (about 1.5 litres)

There's a particular weekend in October when the pickling onions appear at the market and I know what Saturday afternoon is going to look like. A bowl of small, papery onions. A sharp knife. The radio on. A glass of something to make the tedium feel like a ritual rather than a chore. Pickling onions is one of those jobs that has to be done in one sitting, so you may as well settle into it.

I'm not going to pretend the peeling is fun. It isn't. Your hands will smell of onion for two days and you'll wonder, somewhere around the fortieth one, why you started. But there's a reason people have been doing this for generations. A jar of proper pickled onions on the table at Christmas, alongside a wedge of mature cheddar, a slice of cold ham, a hunk of bread, a spoonful of chutney: this is the food that needs no occasion and asks for no fuss. The ploughman's lunch is a quiet kind of perfection, and a good pickled onion is the thing that holds it together.

The trick, if there is one, is patience. Cold vinegar over cold onions, so they stay crunchy. A long brine to firm them up. And then the wait. Six weeks at least, eight if you can manage it. I wrote it down in the notebook the first year I made them: peeled October, opened December, gone by February. They never last as long as you think they will.

A recipe is a conversation, not a contract, so adjust the spices to your taste. More chilli if you like a kick. A bit less sugar if you want them properly sharp. The ratio of vinegar to spice is the foundation; everything else is yours.

The technique, the tradition, and the story behind every dish.

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Ingredients

pickling onions

Quantity

1kg

silverskin or small shallots, unpeeled

fine sea salt

Quantity

100g

cold water

Quantity

1 litre

good malt vinegar

Quantity

1 litre

light brown soft sugar

Quantity

100g

black peppercorns

Quantity

2 tablespoons

yellow mustard seeds

Quantity

2 tablespoons

coriander seeds

Quantity

1 tablespoon

allspice berries

Quantity

1 tablespoon

cloves

Quantity

6

dried bay leaves

Quantity

3

dried chillies

Quantity

2 small

Equipment Needed

  • Two large preserving jars with vinegar-proof lids (around 750ml each)
  • Large non-reactive saucepan
  • Large mixing bowl for brining
  • Funnel (optional but useful)

Instructions

  1. 1

    Loosen the skins

    Tip the onions into a large bowl and pour over a kettle of boiling water. Leave them for one minute, no more, then drain and run cold water over them until they're cool enough to handle. The skins will slip off more willingly now, which matters because you have a lot of onions ahead of you.

    Put the radio on. Pour yourself a drink. Peeling pickling onions is the kind of tedious, repetitive job that becomes pleasant if you stop fighting it and let your hands get on with it.
  2. 2

    Peel and trim

    Top and tail each onion and slip off the papery skin. Try to keep the root end mostly intact so the onions hold their shape. You'll cry. There is no clever way around this. Drop each peeled onion into a large bowl as you go.

  3. 3

    Brine overnight

    Stir the salt into the cold water until it dissolves. Pour the brine over the peeled onions, weight them down with a plate so they stay submerged, and leave them on the counter for twenty-four hours. The salt draws out the water and firms the flesh. Skip this and you'll end up with soft, sad pickles. Don't skip it.

  4. 4

    Make the spiced vinegar

    Pour the malt vinegar into a non-reactive saucepan and add the sugar, peppercorns, mustard seeds, coriander seeds, allspice, cloves, bay leaves, and chillies. Bring it slowly to a simmer, stirring until the sugar has dissolved. The kitchen will smell sharp and warm and a bit Christmas, which is exactly right. Take it off the heat the moment it bubbles and let it cool completely. Cold vinegar over cold onions. Hot vinegar would cook them and you'd lose the crunch.

  5. 5

    Sterilise the jars

    Wash two large jars and their lids in hot soapy water, rinse well, and put them in a low oven at 120C for fifteen minutes to dry and sterilise. The lids can go into a pan of just-boiled water for five minutes. Let everything cool until you can handle it but is still warm.

    Use jars with vinegar-proof lids. Plain metal lids will corrode over time and ruin the pickles. Kilner jars or jars with plastic-lined lids are what you want.
  6. 6

    Pack and pour

    Drain the onions and rinse them under cold water to wash off the brine. Pat them dry with a clean tea towel. Pack them into the sterilised jars, fairly tightly but without bruising them. Pour the cold spiced vinegar over the top, making sure the spices are distributed between the jars and that every onion is covered. Seal the lids firmly.

  7. 7

    Wait

    Label the jars with the date and put them somewhere cool and dark. A cupboard, a pantry, the bottom of a wardrobe if that's what you've got. Now leave them alone for at least six weeks. Eight is better. Twelve is better still. The vinegar needs time to mellow, the spices need time to bloom into the onions, and the harsh edge needs time to soften into something you actually want to eat. Opening them too early is a small heartbreak. I know because I've done it.

Chef Tips

  • Buy the onions in late September or October when they come into season. They're small, firm, and properly pungent at this time of year. Pickling onions out of season are asad business and not worth the effort.
  • Malt vinegar is traditional and right for this. It has the depth and the slight sweetness that white vinegar lacks. Don't be tempted to substitute. If you want a milder pickle, cut the malt with a bit of cider vinegar, but keep most of it malt.
  • The longer you leave them, the better they get. Mine usually sit untouched until the first cold meat lunch of December, by which point they've had ten weeks to come into their own. Open one early to test if you must, but treat it as a sneak preview, not the main event.
  • Serve them cold, straight from the jar, with mature cheddar, pork pie, cold ham, and a pint of decent bitter. This is the most British plate of food I know how to make and there are few better lunches on a cold Saturday.

Advance Preparation

  • These must be made at least six weeks before you want to eat them. Eight to twelve weeks is better. There is no rushing this and no shortcut that will give you the same result.
  • Properly sealed and stored in a cool, dark place, the pickled onions will keep for up to a year. Once opened, refrigerate and eat within three months.

Frequently Asked Questions

Nutrition Information

1 serving (about 30g, 2 pickled onions)

Calories
15 calories
Total Fat
0 g
Saturated Fat
0 g
Trans Fat
0 g
Unsaturated Fat
0 g
Cholesterol
0 mg
Sodium
180 mg
Total Carbohydrates
3 g
Dietary Fiber
0 g
Sugars
2 g
Protein
0 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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