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Sauce

Egg Sauce

A sauce made from butter, flour, milk, and a finely chopped hard‑boiled egg, seasoned with salt and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Egg Sauce

Ingredients

Directions

Prepare

  1. Boil the egg gently in water for 10 to 12 minutes.

Make the sauce

  1. Melt the butter in a saucepan.

  2. Cook the flour in the melted butter for 1 to 2 minutes.

  3. Add the milk and season with salt and pepper, stirring until it boils.

  4. Cook for 2 minutes.

  5. Chop the hard-boiled egg finely and stir it into the sauce.

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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

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

    Shared aroma: isobutyraldehyde (malty, green).

  3. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

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

Flour
Thickens the sauce as its starch swells in the hot liquid.
Butter
Carries the flour and adds richness and a smooth mouthfeel.
Milk
Forms the liquid base that the thickened sauce is built on.
Hard-boiled egg
Adds body and savoury richness through its chopped texture.

The step that matters

Adding the milk while stirring. Flour starch dispersed in melted butter can clump when liquid goes in too fast or unstirred. Constant stirring lets the granules swell evenly as the sauce heats, giving a smooth result.

“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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