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Dessert

Chocolate Custard

A custard made with milk, sugar, cornstarch, egg yolks, vanilla, and grated chocolate.

From an old cookbook · modernised transcription
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Why it works: Vanilla and milk 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 ↓

Chocolate Custard

Ingredients

Directions

Make the custard

  1. Cook the grated chocolate with the milk in a saucepan until the milk is scalded.

  2. In a bowl, mix the cornstarch with the sugar, then add the slightly beaten egg yolks and mix well.

  3. Pour the cornstarch mixture over the scalded milk and cook until the mixture coats the back of a spoon.

Finish

  1. Once cool, stir in the vanilla.

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. Vanilla + milktop 5% of all pairs
    Smell alikemoderate
    Cooked together19,187 recipes

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

  2. Vanilla + chocolatetop 5% of all pairs
    Smell alikemoderate
    Cooked together10,020 recipes

    Shared aroma: sotolon (curry, maple).

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

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

  4. Sugar + chocolatetop 13% of all pairs
    Smell alikemoderate
    Cooked together15,404 recipes

    Shared aroma: guaiacol (smoky, sweet).

  5. Chocolate + milktop 13% of all pairs
    Smell alikemoderate
    Cooked together9,128 recipes

    Shared aroma: gamma-nonanolactone (coconut, sweet).

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

Cornstarch
Thickens the custard as it heats, giving it a smooth, spoonable body.
Egg yolks
Add richness and help set the custard as it cooks.
Milk
Forms the liquid base that the thickeners set into a custard.
Grated chocolate
Gives the custard its chocolate flavor and color.
Sugar
Sweetens the custard and balances the chocolate.

The step that matters

Cook until the mixture coats the back of a spoon. Cornstarch thickens only when heated enough, but overcooking can break the egg yolks and make the custard grainy or thin. Stop when it coats a spoon.

“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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