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Pickled Herring

Pickled herring with onions, pepper, brown sugar, and vinegar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Pickled Herring

Ingredients

Directions

Prepare the herring

  1. Remove herrings from brine, split them through the back, and soak in cold water overnight.

  2. In the morning, clean the herrings and cut them crosswise into ½-inch strips.

Pickle and serve

  1. Place the strips in a deep dish with sliced onions.

  2. Season with pepper and brown sugar.

  3. Pour enough vinegar over the mixture to cover it.

  4. Let it sit for at least a few hours before serving.

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

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

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

    Shared aroma: acetic acid (sour, vinegar).

  3. Pepper + vinegartop 14% of all pairs
    Smell alikemoderate
    Cooked together27,814 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  4. Sugar + vinegartop 15% of all pairs
    Smell alikemoderate
    Cooked together20,806 recipes

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

  5. Pepper + sugartop 32% of all pairs
    Smell alikelow
    Cooked together19,401 recipes

    Shared aroma: 2-nonenal (fatty, green).

Pepper and sugar barely smell alike, yet cooks put them together in 19,401 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Herrings
Provide the main fish flesh and the oily richness that the vinegar cuts.
Onions
Add sharp aromatic flavour that softens and mellows as the mixture pickles.
Vinegar
Acidifies the mixture, firming the fish and preserving it for storage.
Brown sugar
Balances the sharpness of the vinegar with a touch of sweetness.

The step that matters

Covering the herring fully with vinegar. Vinegar must cover all the fish and onion so the acid penetrates evenly. Pieces left above the liquid can spoil and will not pickle properly.

Swap the onion

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

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

Fit is the average pairing score against pepper, sugar, 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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