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Onions, Pickled

Pickled onions preserved in white wine vinegar with pepper and allspice.

From an old cookbook · modernised transcription
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Why it works: Pepper and allspice match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 6,395 recipes. Both carry estragole, which smells anise, licorice. The science ↓

Onions, Pickled

Ingredients

Directions

Prepare the onions

  1. Remove the skins from the onions.

  2. Boil a saucepan of water and add the onions in a single layer.

Cook and cool

  1. Once the onions look clear, quickly remove them with a slotted spoon.

  2. Fold the onions in a clean, dry cloth to keep them warm and steamy.

  3. Allow the onions to cool completely.

Pickle and store

  1. Place the cooled onions into bottles or jars.

  2. Boil the white wine vinegar, let it cool slightly, then pour it over the onions.

  3. Seal the jars tightly and store in a cool, dry place.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Pepper + allspicetop 5% of all pairs
    Smell alikestrong
    Cooked together6,395 recipes

    Shared aroma: estragole (anise, licorice).

  2. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. White wine + vinegartop 11% of all pairs
    Smell alikemoderate
    Cooked together1,776 recipes

    Shared aroma: beta-damascenone (apple, rose).

  4. Onion + white winetop 12% of all pairs
    Smell alikemoderate
    Cooked together4,535 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  5. Onion + allspicetop 13% of all pairs
    Smell alikemoderate
    Cooked together4,270 recipes

    Shared aroma: coumarin (sweet, hay).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Silver onions
Form the main body of the dish, becoming tender and translucent when briefly blanched.
White wine vinegar
Provides acidity that sharpens the flavour and helps preserve the onions.

The step that matters

Removing the onions once they look clear. Onions cooked too long in boiling water soften and turn mushy, losing the firm bite that makes pickled onions pleasant. Lifting them out as soon as they turn translucent keeps their texture intact.

Swap the onion

How well each one fits the dish's main ingredients (white wine, vinegar, pepper, allspice):

  1. Capsicumfits better
  2. Mustardfits better
  3. Shallotfits better
  4. Onionthe original

Fit is the average pairing score against white wine, vinegar, pepper, allspice. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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