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Dessert

Liqueur Jelly

A gelatinous dessert made from sugar, water, lemon juice, liqueur, and isinglass.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sugar and lemon are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Liqueur Jelly

Ingredients

Directions

Make the syrup

  1. Combine the sugar and 1 pint of water in a saucepan.

  2. Boil gently, skimming off any scum that forms until it disappears.

Set the jelly

  1. Boil the isinglass with the remaining ½ cup of water in a separate pot until dissolved.

  2. Mix the dissolved isinglass with the sugar syrup.

  3. Add the lemon juice and liqueur and stir well.

  4. Pour into molds.

  5. Allow to set before serving.

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 + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 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

Isinglass
Sets as it cools, giving the liquid a firm, sliceable jelly structure.
Sugar
Provides sweetness and body to the syrup that the jelly is built on.
Lemon juice
Adds acidity that brightens the flavor and balances the sweetness.
Liqueur
Adds the main flavor and aroma of the jelly.

The step that matters

Dissolve the isinglass fully before mixing. Isinglass is a collagen-based gelling agent. If it is not completely dissolved in hot water, undissolved particles remain and the jelly sets unevenly with specks and weak spots.

“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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