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Pickled Onions

Pickled onions preserved in vinegar with allspice and black pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Allspice and pepper 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 ↓

Pickled Onions

Ingredients

Directions

Prepare

  1. Remove the first skin of the onions with your fingers and the second skin with a silver knife.

  2. Pack the onions into well-washed and dried bottles or jars.

Pickle

  1. Pour enough cold vinegar over the onions to cover them completely, seasoned with the allspice and black pepper. Ensure the vinegar fully covers the onions.

  2. Cover and seal the jars tightly to exclude air.

  3. Let the onions sit for two weeks before using.

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. Allspice + peppertop 5% of all pairs
    Smell alikestrong
    Cooked together6,395 recipes

    Shared aroma: estragole (anise, licorice).

  2. Pepper + oniontop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  3. Allspice + oniontop 13% of all pairs
    Smell alikemoderate
    Cooked together4,270 recipes

    Shared aroma: coumarin (sweet, hay).

  4. Allspice + vinegartop 13% of all pairs
    Smell alikemoderate
    Cooked together4,548 recipes

    Shared aroma: 2-methylbutyl acetate (fruit).

  5. Onion + vinegartop 14% of all pairs
    Smell alikemoderate
    Cooked together18,226 recipes

    Shared aroma: acetic acid (sour, vinegar).

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

What each ingredient does

Small white ripe dry onions
Provide the main vegetable that becomes tender and mellow as it steeps in the vinegar.
Cold vinegar
Acidifies and preserves the onions, giving them their sharp, tangy flavour.
Whole allspice
Adds warm, aromatic spice notes that infuse into the vinegar and onions.
Whole black pepper
Contributes mild heat and aromatic sharpness to the pickling liquid.

The step that matters

Keep the onions fully submerged in vinegar. Onions exposed to air can spoil and mould, while full coverage by acidic vinegar inhibits microbial growth and keeps the pickle safe and crisp.

Swap the onion

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

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

Fit is the average pairing score against allspice, pepper, vinegar. 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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