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Dessert

Punch Jelly

Punch jelly is a gelatin dessert made with isinglass, water, brandy, rum, lemon juice, and sugar.

From an old cookbook · modernised transcription
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Why it works: Brandy and rum are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 1,058 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Punch Jelly

Ingredients

Directions

Make the jelly

  1. Dissolve isinglass in water.

  2. Strain the mixture and bring it to a boil.

  3. Add brandy, rum, lemon juice, and sugar. Stir until the sugar is dissolved.

Set

  1. Pour into a shape and let it 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. Brandy + rumtop 5% of all pairs
    Smell alikemoderate
    Cooked together1,058 recipes

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

  2. Rum + sugartop 14% of all pairs
    Smell alikelow
    Cooked together2,908 recipes

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

  3. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  4. Brandy + sugartop 19% of all pairs
    Smell alikelow
    Cooked together11,939 recipes

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

  5. Rum + lemontop 19% of all pairs
    Smell alikemoderate
    Cooked together1,341 recipes

    Shared aroma: alpha-pinene (pine, turpentine).

Lemon and sugar 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 as it cools.
Brandy
Adds aroma and flavour, and its alcohol keeps the jelly slightly softer.
Rum
Adds aroma and flavour to the jelly.
Lemon juice
Adds acidity that brightens the sweetness of the jelly.
Pounded loaf sugar
Sweetens the jelly and adds body to the liquid.

The step that matters

Pour into a shape and let it set. Isinglass only firms once the liquid cools enough, so it needs time to set undisturbed. Pouring while the mixture is still too hot or moving the shape early can leave it soft or cloudy.

Swap the lemon

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

  1. Vanillafits better
  2. Pineapplefits better
  3. Apricotfits better
  4. Lemonthe original

Fit is the average pairing score against brandy, rum, sugar. 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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