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Eggs Au Gratin

A dish of eggs cooked with butter, breadcrumbs, onion, parsley, salt, and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 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 34,122 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Eggs Au Gratin

Ingredients

Directions

  1. Heat the butter in a chafing dish.

  2. Add the bread crumbs, chopped onion, and parsley.

  3. Carefully drop in the eggs and cook until the whites are set.

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 aroma chemistry they share, and how many recipes mention both.

  1. Parsley + peppertop 2% of all pairs
    Aroma overlapstrong
    Mentioned together34,122 recipes

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

  2. Butter + breadtop 7% of all pairs
    Aroma overlapmoderate
    Mentioned together27,232 recipes

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

  3. Onion + parsleytop 9% of all pairs
    Aroma overlapmoderate
    Mentioned together25,843 recipes

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

  4. Onion + peppertop 11% of all pairs
    Aroma overlapmoderate
    Mentioned together68,474 recipes

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

  5. Bread + eggtop 13% of all pairs
    Aroma overlapmoderate
    Mentioned together22,662 recipes

    Shared aroma: (e)-2-octenal (fatty, green).

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

What each ingredient does

Eggs
Set to form the body of the dish as the whites cook firm while the yolks stay soft.
Butter
Adds fat and richness and helps the crumbs and aromatics toast gently in the pan.
Bread crumbs
Absorb butter and browning in the pan, giving the dish a crisp, golden topping texture.
Onion
Adds savory aroma and sweetness as it softens in the butter.

The step that matters

Carefully drop in the eggs and cook until the whites are set. Eggs cooked in a pan can break or spread if added roughly. Gentle dropping keeps each egg whole, and cooking until the whites set firm while the yolks remain soft gives the classic texture.

Flavor stand-ins for the onion

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

  1. Shallotbetter flavor fit
  2. Capsicumbetter flavor fit
  3. Chivebetter flavor fit
  4. Onionthe original

Fit is the average pairing score against parsley, butter, bread, pepper, egg. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“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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