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Isinglass Blancmange

A sweet custard dessert made with isinglass, milk, cream, sugar, and lemon rind.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓

Isinglass Blancmange

Ingredients

Directions

Make the blancmange

  1. Soak the isinglass and lemon rind in the milk for about 2 hours.

  2. Simmer gently for about 20 minutes.

  3. Strain the mixture and return it to the saucepan.

  4. Add the cream and sweeten to taste, then bring to a boil.

Set and serve

  1. Once cool, pour into a mold to set.

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 + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  2. Milk + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

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

  3. Cream + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together29,399 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  4. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  5. Sugar + milktop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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

Patent isinglass
Fish-derived gelatin that sets the liquid into a firm, wobbly custard when cooled.
Milk
Forms the liquid base that the isinglass dissolves into and sets.
Cream
Adds richness and fat, giving a softer, smoother mouthfeel to the set dessert.
Sugar
Sweetens the dessert to taste.

The step that matters

Simmer gently. Isinglass must be fully dissolved without a hard boil. Vigorous boiling can weaken its setting power and make the milk scorch or stick, so keep the heat low and steady.

Swap the lemon

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

  1. Vanillafits better
  2. Strawberryfits better
  3. Figfits better
  4. Lemonthe original

Fit is the average pairing score against sugar, cream, milk. 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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