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Eggs Hashed

A sautéed dish of sliced hard‑boiled eggs, onion, butter, flour, herb broth, cream, parsley, pepper, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Eggs Hashed

Ingredients

Directions

Prepare

  1. Slice the hard-boiled eggs.

  2. In a pan, fry the sliced onion in butter until soft.

Make the hash

  1. Add the sliced eggs to the pan with flour and herb broth.

  2. Stir in the cream, chopped parsley, pepper, and salt.

  3. Serve hot.

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. Parsley + peppertop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

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

  2. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  3. Onion + parsleytop 9% of all pairs
    Smell alikemoderate
    Cooked together25,843 recipes

    Shared aroma: 2,4-decadienal (seaweed).

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

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

  5. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Butter and flour barely smell alike, yet cooks put them together in 124,287 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

Hard-boiled eggs
Form the main body of the hash and provide its protein-rich filling.
Onion
Softens in butter to add sweetness and savory depth to the dish.
Butter
Adds fat for frying the onion and a rich, savory flavor.
Flour
Thickens the cooking liquid so the hash becomes binding rather than watery.
Herb broth
Supplies moisture and savory flavor that combines with the flour into a sauce.
Cream
Adds richness and body to the sauce, mellowing its texture.

The step that matters

Stir in the flour with the herb broth. Flour must be cooked into the butter and liquid, or it stays raw-tasting and lumpy. Adding the broth gradually and stirring keeps the sauce smooth and lets the starch thicken evenly.

Swap the onion

How well each one fits the dish's main ingredients (egg, butter, flour, cream, parsley, pepper):

  1. Shallotfits better
  2. Chivefits better
  3. Spinachfits better
  4. Onionthe original

Fit is the average pairing score against egg, butter, flour, cream, parsley, pepper. 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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