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Dessert

Boiled Custard

A custard made by heating milk, mixing with beaten eggs and sugar, then cooling and topping with whipped cream and vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

Boiled Custard

Ingredients

Directions

Make the custard

  1. Heat the milk in a kettle until it just begins to boil.

  2. Lightly beat the eggs. Mix in the sugar.

  3. Strain the hot milk through a fine cloth into the egg and sugar mixture. Stir rapidly.

  4. Return the mixture to the kettle.

  5. Heat gently, stirring to prevent burning, until it is just below boiling.

  6. Pour the custard into a bowl.

  7. Let it cool by ladling it up and down.

Finish

  1. Whip the heavy cream until frothy.

  2. Pour the whipped cream over the cooled custard.

  3. Add vanilla extract to taste.

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 + 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. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  4. Cream + vanillatop 15% of all pairs
    Smell alikelow
    Cooked together12,301 recipes

    Shared aroma: 2-nonanone (fruity, floral).

  5. Milk + creamtop 18% of all pairs
    Smell alikemoderate
    Cooked together29,399 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

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

Eggs
Their proteins coagulate on gentle heating, thickening the milk into a custard.
Milk
Forms the liquid base that the eggs thicken into a smooth custard.
Sugar
Adds sweetness and helps soften the set custard.
Heavy cream
Adds richness and fat, giving a light, creamy topping when whipped.

The step that matters

Heat gently, stirring to prevent burning. Egg proteins set at a narrow temperature range. Heating too fast or without stirring can scramble the eggs or scorch the milk on the bottom, so stop just below boiling.

“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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