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Dessert

Irish Moss Blanc-mange

A sweet custard made from Irish moss, milk, sugar, and vanilla, set in a mold and served chilled.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Irish moss and vanilla share more aroma than cooks usually use. They rank in the top 5% of all ingredient pairs, and cooks put them together in 58 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Irish Moss Blanc-mange

Ingredients

Directions

Prepare the moss

  1. Soak the Irish moss in a little cold water for 5 minutes.

  2. Remove the moss from the water and add it to the boiling milk.

Make the blancmange

  1. Simmer until the mixture reaches the consistency of cream.

  2. Sweeten and flavor the mixture.

  3. Strain the mixture through a wire sieve into a mold to cool.

Serve

  1. Once cooled, turn it out of the mold onto a dish and serve with cream and sugar.

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. Irish moss + vanillatop 5% of all pairs
    Smell alikestrong
    Cooked together58 recipes

    Shared aroma: coumarin (sweet, hay).

  2. Milk + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together19,187 recipes

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

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

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

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

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

  5. Irish moss + milktop 19% of all pairs
    Smell alikemoderate
    Cooked together98 recipes

    Shared aroma: 2-methylbutyraldehyde (malty, chocolate).

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

Irish moss
Seaweed that releases gelling compounds as it simmers, thickening the milk into a set blancmange.
New milk
Forms the body of the dessert and sets into a soft, creamy gel with the moss.
Sugar
Sweetens the blancmange and adds to its smooth, rounded flavor.

The step that matters

Simmer until the mixture reaches the consistency of cream. The moss must be heated long enough to dissolve its gelling compounds, but overcooking can weaken the set. Judging by consistency helps the mixture set properly when it cools.

“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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