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Dessert

Chocolate Custard

A sweet custard made with milk, sugar, egg yolks, flour, chocolate, baked in a pie crust, topped with whipped egg whites.

From an old cookbook · modernised transcription
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Why it works: Sugar and chocolate are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 15,404 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓

Chocolate Custard

Ingredients

Directions

Make the custard

  1. In a saucepan, combine sweet milk, sugar, egg yolks, flour, and chocolate.

  2. Boil the mixture over medium heat, stirring constantly until thickened.

Assemble and top

  1. Pour the custard into a baked pie crust.

  2. Beat the egg whites until stiff peaks form.

  3. Spread the whipped egg whites over the custard.

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

    Shared aroma: guaiacol (smoky, sweet).

  2. Milk + chocolatetop 13% of all pairs
    Smell alikemoderate
    Cooked together9,128 recipes

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

  3. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  5. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Milk and flour barely smell alike, yet cooks put them together in 78,219 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 and add richness to its texture.
Flour
Thickens the custard so it sets smoothly rather than runny.
Egg whites
Whipped to stiff peaks, they form a light topping over the custard.
Sugar
Sweetens the custard and balances the bitterness of the chocolate.
Chocolate
Provides the chocolate flavor and color of the custard.

The step that matters

Boil the mixture until thickened. Stirring constantly over medium heat keeps the flour and egg yolks from scorching or lumping, and the starch must boil to fully thicken the 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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