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Dessert

Liqueur Jelly

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

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 cup of water in a saucepan.

  2. Boil gently, skimming off any scum until none remains.

  3. Boil the isinglass with the remaining ½ cup of water in another saucepan, skimming carefully.

  4. Strain the lemon juice.

Set the jelly

  1. Add the lemon juice and clarified isinglass to the syrup.

  2. Stir in the liqueur and bring the mixture to a boil.

  3. Cover the saucepan and let it sit by the side of the fire for a few minutes.

  4. Pour the jelly through a bag into a mold and set it in ice until needed.

Serve

  1. To serve, dip the mold in hot water, wipe the outside, loosen the jelly with a knife around the edges, and turn it out onto a dish.

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
Gelatin-like protein that sets the liquid into a firm jelly when cooled.
Lump sugar
Provides sweetness and body to the syrup that the jelly is built on.
Lemon juice
Adds acidity that brightens the sweetness and balances the flavor.
Liqueur
Supplies the main aroma and flavor of the jelly.

The step that matters

Skimming the syrup and isinglass. Scum left in the syrup or isinglass will cloud the jelly and can spoil its clear appearance, so skim until no scum rises.

“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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