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Pepper Hash

A pickled pepper and onion hash made with vinegar, salt, and sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Pepper and onion 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 ↓

Pepper Hash

Ingredients

Directions

Prepare the vegetables

  1. Remove seeds from the peppers and wash them.

  2. Chop the peppers and onions together until finely minced.

  3. Pour boiling water over the mixture to cover and let it stand for five minutes.

  4. Drain through a colander and press out all the water.

Cook the hash

  1. In a pot, combine boiling vinegar, salt, and sugar.

  2. Add the hash to the vinegar mixture and bring to a boil.

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 + oniontop 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. Vinegar + sugartop 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

Green peppers
Provide the main bulk and fresh, slightly bitter vegetable flavor.
Red or ripe peppers
Add sweetness and color to the finished hash.
Onions
Add savory depth and aroma to the hash.
Vinegar
Provides acidity that preserves the hash and gives it its tang.
Sugar
Balances the acidity of the vinegar with sweetness.

The step that matters

Pressing out the water. Vegetables hold a lot of water; pressing it out before adding the vinegar keeps the hash from diluting the brine and turning soft or watery.

Swap the onion

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

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

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