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Dessert

Boiled Custard

A custard made by beating an egg with sugar, cooked in boiling milk, served over toast and topped with nutmeg.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Milk and nutmeg are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 14,685 recipes. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓

Boiled Custard

Ingredients

Directions

Make the custard

  1. Beat the egg with the sugar.

  2. Stir the mixture into the boiling milk and cook until thick.

Serve

  1. Pour the custard over the cut-up toast.

  2. Grate a little nutmeg on top.

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 + nutmegtop 15% of all pairs
    Smell alikemoderate
    Cooked together14,685 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  2. Egg + nutmegtop 17% of all pairs
    Smell alikelow
    Cooked together24,744 recipes

    Shared aroma: acetic acid (sour, vinegar).

  3. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  4. Sugar + milktop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

  5. Sugar + nutmegtop 20% of all pairs
    Smell alikelow
    Cooked together23,364 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

Egg and nutmeg barely smell alike, yet cooks put them together in 24,744 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

Egg
Thickens the milk as it cooks, giving the custard its body and set.
Milk
Forms the liquid base that the egg proteins thicken into a custard.
Sugar
Adds sweetness and helps soften the egg's flavour in the custard.
Toast
Soaks up the warm custard, giving a soft, absorbent base to serve it on.

The step that matters

Cook until thick after adding the egg mixture to the boiling milk. Egg proteins set when heated, thickening the custard. If it is not cooked long enough it stays thin, and if it overheats the egg can curdle or scramble, so it should be stirred and watched closely.

Swap the nutmeg

How well each one fits the dish's main ingredients (egg, sugar, milk):

  1. Cinnamonfits better
  2. Nutmegthe original
  3. Gingerfits less well
  4. Allspicefits less well

Fit is the average pairing score against egg, sugar, milk. 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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