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Dessert

Peach Jelly

A fruit jelly made from peaches, sugar, water, lemon rind and juice, and set with isinglass or gelatin.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Peach and lemon work together. They rank in the top 12% of all ingredient pairs, and cooks put them together in 947 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Peach Jelly

Ingredients

Directions

Make the syrup

  1. Boil the peaches and bruised kernels in a thin syrup made of sugar and water for 15 minutes.

  2. Flavor the syrup with the grated lemon rind and strained lemon juice.

  3. Strain the mixture through a jelly bag.

Set the jelly

  1. Add the dissolved isinglass or gelatine to the strained syrup.

  2. Pour the mixture into a mold and set it on ice until the jelly is firm enough to turn out.

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. Peach + lemontop 12% of all pairs
    Smell alikemoderate
    Cooked together947 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Peach + sugartop 17% of all pairs
    Smell alikelow
    Cooked together2,308 recipes

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

  3. 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

Peaches
Provide the fruit flavor and body of the jelly.
Sugar
Sweetens the syrup and helps give the jelly its soft, clear body.
Isinglass or gelatine
Sets the liquid syrup into a firm jelly as it cools.
Lemon juice
Adds acidity that brightens the peach flavor.

The step that matters

Add the gelatine to the strained syrup. Isinglass or gelatine must be fully dissolved before it goes into the syrup, otherwise it can leave specks or weak spots. The jelly sets only once the syrup has cooled and the gelatine has enough time to form a network that traps the liquid.

Swap the lemon

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

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

Fit is the average pairing score against peach, 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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