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Cucumber Vinegar

A simple cucumber pickle made by submerging cucumbers in vinegar, salt, peppercorns, and optional onion.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

Cucumber Vinegar

Ingredients

Directions

Prepare the jar

  1. Wash the cucumbers and slice them into a jar without peeling.

  2. Pour boiling vinegar over the cucumbers until they are fully covered.

  3. Add salt and peppercorns to the vinegar.

Steep

  1. Seal the jar to protect from air and let it sit for one to two months.

  2. Optionally, add a mild onion for extra flavor.

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. Vinegar + oniontop 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

Young cucumbers
Provide the main vegetable body and crisp texture that takes on the vinegar's flavor.
Vinegar
Adds sourness and acidity that flavors the cucumbers and helps keep them preserved.
Peppercorns
Add a sharp, warm aroma that infuses into the vinegar over time.

The step that matters

Covering the cucumbers fully with vinegar. Any cucumber left above the liquid is exposed to air, which invites spoilage and mold. Keeping every piece submerged in the acidic vinegar protects the batch and lets flavor penetrate evenly.

Swap the onion

The recipe marks onion as optional. How well each one fits the dish's main ingredients (cucumber, vinegar):

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

Fit is the average pairing score against cucumber, 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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