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Dessert

Cocoa Sauce

A simple chocolate sauce made by boiling milk, mixing cocoa, sugar, salt, and cornstarch, then thickening.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Milk and cocoa work together. They rank in the top 10% of all ingredient pairs, and cooks put them together in 643 recipes. Both carry methyl 2-methylbutyrate, which smells fruity, apple. The science ↓

Cocoa Sauce

Ingredients

Directions

Heat the milk

  1. Heat the milk in a saucepan until it boils.

Make the sauce

  1. In a bowl, mix the sugar, cocoa, salt, and cornstarch.

  2. Blend the dry ingredients with a little cold milk to form a paste.

  3. Slowly pour the paste into the boiling milk while stirring continuously.

  4. Cook until the sauce thickens.

Serve

  1. Serve hot or cold.

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 + cocoatop 10% of all pairs
    Smell alikemoderate
    Cooked together643 recipes

    Shared aroma: methyl 2-methylbutyrate (fruity, apple).

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

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

  3. Sugar + cocoatop 27% of all pairs
    Smell alikelow
    Cooked together956 recipes

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

Milk and sugar barely smell alike, yet cooks put them together in 77,875 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

Milk
Forms the liquid base and body of the sauce.
Sugar
Adds sweetness and softens the bitterness of the cocoa.
Cocoa
Provides the chocolate flavour and dark colour.
Cornstarch
Thickens the sauce as its starch swells in heat.

The step that matters

Pouring the paste into the boiling milk. Cornstarch clumps if it hits hot liquid undispersed. Mixing it into cold milk first and stirring while pouring lets the starch disperse evenly, so the sauce thickens smoothly without lumps.

Swap the cocoa

How well each one fits the dish's main ingredients (milk, sugar):

  1. Cocoathe original
  2. Almondfits about as well
  3. Chestnutfits about as well
  4. Peanutfits less well

Fit is the average pairing score against milk, sugar. 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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