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Dessert

Irish Moss Jelly

A dessert made by cooking Irish moss with water, milk, salt, and vanilla, then setting it to harden.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 Jelly

Ingredients

Directions

Prepare the moss

  1. Wash the Irish moss until soft and free from sand.

Make the jelly

  1. Combine the moss, boiling water, and salt in the top of a double boiler.

  2. Cook until thick as cream.

  3. Strain the mixture into scalded milk.

  4. Add vanilla.

Set and serve

  1. Pour into small cups that have been wet with cold water.

  2. Set aside to harden.

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

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Irish moss
Its natural gel-forming compounds thicken the liquid and set it into a jelly as it cools.
Milk
Provides the liquid base, creaminess, and body of the finished jelly.

The step that matters

Cooking the moss until thick as cream. The moss must be fully softened and dissolved in the hot water so its gelling compounds can release. If it is undercooked, the mixture will not thicken and set properly.

“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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