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Dessert

Boiled Custard

A custard made by boiling milk and eggs with sugar and corn starch, served warm or chilled.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Milk and corn are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 6,955 recipes. Both carry hexanal, which smells green, grassy. The science ↓

Boiled Custard

Ingredients

Directions

Prepare

  1. Separate the yolks and whites of the eggs.

  2. In a saucepan, bring the milk to a boil.

  3. In a bowl, mix the egg yolks, sugar, and corn starch.

Make the custard

  1. Once the milk is boiling, stir it into the egg mixture constantly.

  2. Return the mixture to the saucepan and cook until thickened.

Serve

  1. Serve warm or chilled, garnished with nutmeg.

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 + corntop 10% of all pairs
    Smell alikemoderate
    Cooked together6,955 recipes

    Shared aroma: hexanal (green, grassy).

  2. Corn + nutmegtop 10% of all pairs
    Smell alikemoderate
    Cooked together563 recipes

    Shared aroma: estragole (anise, licorice).

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

    Shared aroma: eucalyptol (eucalyptus, herbal).

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

    Shared aroma: acetic acid (sour, vinegar).

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

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

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

Eggs
Yolks thicken the custard as they set with heat and add richness.
Sugar
Adds sweetness and balances the flavor of the milk and eggs.
Milk
Forms the liquid base of the custard that thickens when heated.
Corn starch
Thickens the custard by swelling in hot liquid, giving it body.

The step that matters

Stir the milk into the egg mixture constantly. Adding hot milk too quickly or without stirring can scramble the egg yolks. Constant stirring tempers the eggs gradually so the custard thickens smoothly.

Swap the nutmeg

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

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

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