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Dessert

Boiled Custard

A custard made by heating milk, whisking eggs and sugar, then baking until thick and topping with meringue and preserved fruit.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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 almost to boiling.

  2. Beat the egg yolks until light and stir in the sugar.

  3. Remove the milk from the heat.

  4. Gradually mix in a spoonful of milk with the egg mixture, beating well.

  5. Continue adding more milk until fully combined to prevent curdling.

  6. Stir in the 5 whipped egg whites.

  7. Return the mixture to the heat.

  8. Stir until thick, but do not let it boil.

  9. Season with vanilla.

Finish and serve

  1. Pour into glass cups.

  2. Whip the 2 egg whites to a meringue with the powdered sugar.

  3. Wait until the custard is cold.

  4. Top each cup with a little meringue.

  5. Garnish with a preserved strawberry, cherry, melon sweetmeat, or a bit of bright jelly.

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

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

  4. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

  5. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

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 milk into a custard as they set gently with heat.
Milk
Forms the liquid base that the eggs thicken into a pourable custard.
Sugar
Sweetens the custard.
Egg whites
Whipped whites add airy lightness and form the meringue topping.
Vanilla extract
Adds aroma to the finished custard.

The step that matters

Stir until thick, but do not let it boil.. Egg yolk proteins thicken when heated gently. Boiling or overheating makes them tighten and scramble, causing curdling and a grainy texture instead of a smooth custard.

“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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