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Pickled Cucumbers

A method of preserving cucumbers, peppers, and onions in a brine and vinegar with alum.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Cucumber and onion match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 6,050 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Pickled Cucumbers

Ingredients

Directions

Make the brine

  1. Combine salt and water to create a brine.

Soak and scald over four days

  1. Cover cucumbers, peppers, and onions with boiling brine and let sit overnight.

  2. Make a new brine on the second morning and scald again on the third morning.

  3. On the fourth morning, rinse the pickles in cold water.

  4. Cover the pickles with boiling vinegar and add a small piece of alum.

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. Cucumber + oniontop 8% of all pairs
    Smell alikestrong
    Cooked together6,050 recipes

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

  2. Cucumber + vinegartop 8% of all pairs
    Smell alikemoderate
    Cooked together4,734 recipes

    Shared aroma: 2-methylbutyl acetate (fruit).

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

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

  4. Cucumber + peppertop 12% of all pairs
    Smell alikemoderate
    Cooked together5,991 recipes

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

  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

Cucumbers
Form the pickle itself, becoming crisp-tender as they cure in brine and vinegar.
Salt
Draws water out of the vegetables and seasons the brine that cures them.
Vinegar
Provides the sour acidity that defines the pickle and helps preserve it.
Alum
Helps the pickles stay firm by strengthening the vegetables' cell structure.

The step that matters

Repeated brine changes and scalding. Each fresh brine and scalding step draws out moisture and bitterness gradually. Skipping or rushing a day can leave pickles soft, salty, or harsh-tasting.

Swap the onion

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

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

Fit is the average pairing score against cucumber, 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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