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Eggs Au Gratin

Eggs au gratin is a baked dish of halved hard‑boiled eggs topped with a creamy Parmesan sauce.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Cream and butter are a kitchen classic. They rank in the top 8% of all ingredient pairs, and 41,516 recipes mention both. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Eggs Au Gratin

Oven, in the book's wordsA hot oven

Ingredients

Directions

Prepare the eggs

  1. Boil the eggs hard, then dip them in cold water for 1 minute.

  2. Divide the eggs in half lengthwise and arrange them in a circle on a serving dish.

Make the sauce

  1. Melt the butter in a saucepan, then stir in the flour, salt, pepper, cayenne, cream, and stock.

  2. Add 1 tablespoon of Parmesan cheese and boil the sauce for 5 minutes.

  3. Remove from heat and stir in the beaten yolks to coat the eggs.

Brown and serve

  1. Sprinkle the remaining Parmesan cheese on top and place under a broiler or in a hot oven to brown.

  2. Pour the remaining sauce around the eggs, garnish with fried bread, and serve.

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. Cream + buttertop 8% of all pairs
    Aroma overlapmoderate
    Mentioned together41,516 recipes

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

  2. Butter + parmesan cheesetop 9% of all pairs
    Aroma overlapmoderate
    Mentioned together4,163 recipes

    Shared aroma: guaiacol (smoky, sweet).

  3. Butter + flourtop 12% of all pairs
    Aroma overlaplow
    Mentioned together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Pepper + parmesan cheesetop 14% of all pairs
    Aroma overlapmoderate
    Mentioned together5,322 recipes

    Shared aroma: ethyl 2-methylbutyrate (fruity, apple).

  5. Egg + flourtop 15% of all pairs
    Aroma overlaplow
    Mentioned together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Butter and flour share little aroma chemistry, yet 124,287 recipes mention both: they likely 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 dish, holding the sauce and cheese.
Cream or milk
Provides the liquid base of the sauce, giving it a smooth, rich texture.
Butter
Fat that starts the roux and adds richness to the sauce.
Flour
Thickens the butter and cream into a smooth sauce that coats the eggs.
Parmesan cheese
Adds savoury flavour and helps the topping brown under heat.
Raw egg yolks
Enrich and thicken the sauce when stirred in off the heat, giving it body.

The step that matters

Stirring in the beaten yolks. Egg yolks thicken when heated, but if the sauce is too hot they can scramble. Removing the pan from the heat before adding them lets them thicken the sauce smoothly.

“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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