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Boiled Custards

A custard made by heating milk with eggs and sugar, topped with meringue.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Boiled Custards

Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

Boiled Custards

Ingredients

Directions

Make the custard

  1. Scald the milk in a saucepan.

  2. In a bowl, beat the egg yolks lightly and mix in the sugar.

  3. Pour the hot milk over the yolk mixture and stir well.

  4. Fold in the beaten egg whites and return the mixture to the heat.

  5. Stir until the custard thickens, then remove from heat and let cool.

Finish and serve

  1. Pour the custard into small cups.

  2. For the meringue, whip the egg whites with powdered sugar until stiff peaks form.

  3. Top each cup of custard with a large spoonful of meringue.

  4. For a variation, mix currant jelly into the meringue before topping.

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.

Photo for illustrative purposes only · Contact us to use it

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 + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together19,187 recipes

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

  2. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

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

  3. Milk + curranttop 16% of all pairs
    Smell alikelow
    Cooked together5,475 recipes

    Shared aroma: isoamyl acetate (banana, pear).

  4. Milk + eggtop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  5. Vanilla + curranttop 18% of all pairs
    Smell alikemoderate
    Cooked together514 recipes

    Shared aroma: ethyl cinnamate (sweet, balsamic).

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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 yolks
Thicken the custard as they cook, giving it a rich, smooth body.
Egg whites
Whipped to stiff peaks, they form the airy structure of the meringue topping.
Milk
Forms the liquid base that the eggs thicken into custard.
Sugar
Sweetens the custard and helps stabilise the egg yolks against curdling.

The step that matters

Stir until the custard thickens. Egg yolks thicken as they heat, but if overheated they can scramble and curdle. Stir constantly over gentle heat and remove once it coats a spoon.

Swap the currant

The recipe marks currant as optional. How well each one fits the dish's main ingredients (milk, egg, sugar, vanilla):

  1. Figfits better
  2. Peachfits better
  3. Blueberryfits better
  4. Currantthe original

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