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Dessert

Eggs a LA Duchesse

A custard made with milk, vanilla, cornflour, and eggs, topped with whipped egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and 19,187 recipes mention both. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

Eggs a LA Duchesse

Ingredients

Directions

Make the custard base

  1. Slice the vanilla and boil it with the milk and sugar.

  2. Smooth the cornflour with 1 tablespoon of water.

  3. Thicken the milk with the cornflour mixture and cook gently for 2-3 minutes.

  4. Remove the vanilla.

Poach the egg whites

  1. Whip the egg whites to stiff peaks.

  2. Drop spoonfuls of the whipped egg whites into the boiling milk.

  3. Simmer until set.

  4. Remove the egg snowballs with a slotted spoon.

  5. Place the egg snowballs in a glass dish.

Finish the custard and serve

  1. Let the milk cool slightly.

  2. Beat the egg yolks.

  3. Mix the yolks carefully with the milk, avoiding curdling.

  4. Stir the mixture over low heat until it thickens, but do not let it boil.

  5. Let the custard cool.

  6. Pour the custard into the glass dish without covering the egg snow.

  7. Serve when completely cold.

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. Milk + vanillatop 5% of all pairs
    Aroma overlapmoderate
    Mentioned together19,187 recipes

    Shared aroma: ethyl caproate (fruity, apple peel).

  2. Sugar + vanillatop 8% of all pairs
    Aroma overlaplow
    Mentioned together35,032 recipes

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

  3. Milk + eggtop 18% of all pairs
    Aroma overlapmoderate
    Mentioned together88,785 recipes

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

  4. Milk + sugartop 18% of all pairs
    Aroma overlaplow
    Mentioned together77,875 recipes

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

  5. Egg + sugartop 21% of all pairs
    Aroma overlapmoderate
    Mentioned together122,807 recipes

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

Sugar and vanilla share little aroma chemistry, yet 35,032 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

Eggs
Whites whip into stiff peaks that set into the poached snowballs; yolks thicken the custard.
Milk
Forms the body of the custard and the liquid the egg whites poach in.
Cornflour
Starch swells when heated, thickening the milk into a smooth custard.

The step that matters

Mix the yolks carefully with the milk, avoiding curdling. Egg yolks can scramble if they meet hot liquid too fast or are heated too hard. Adding warm milk gradually and keeping the heat low lets the yolks thicken the custard smoothly instead of curdling.

“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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