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Dessert

Preserved Citron

A preserved citron made by boiling melon, sugar, lemon, ginger, and peach leaves until clear.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Melon and peach share more aroma than cooks usually use. They rank in the top 3% of all ingredient pairs, and cooks put them together in 65 recipes. Both carry 2,6-nonadienal, which smells cucumber, green. The science ↓

Preserved Citron

Ingredients

Directions

Prepare the melon

  1. Put the melon in a kettle and cover with water and some peach leaves.

  2. Boil for 30 minutes or until clear.

  3. Transfer to cold water for a few hours.

Make the syrup

  1. Tie the ginger in a cloth and boil in 3 pints of water until highly flavored.

  2. Remove the ginger and dissolve the sugar in the ginger water.

  3. Add the lemon rind, boil, and skim.

Finish and cook

  1. Add the citron and lemon juice; boil until clear.

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. Melon + peachtop 3% of all pairs
    Smell alikestrong
    Cooked together65 recipes

    Shared aroma: 2,6-nonadienal (cucumber, green).

  2. Lemon + gingertop 5% of all pairs
    Smell alikestrong
    Cooked together5,154 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  3. Melon + gingertop 7% of all pairs
    Smell alikemoderate
    Cooked together342 recipes

    Shared aroma: methyl 2-methylbutyrate (fruity, apple).

  4. Ginger + peachtop 8% of all pairs
    Smell alikemoderate
    Cooked together218 recipes

    Shared aroma: 1-octen-3-one (mushroom, metallic).

  5. Lemon + peachtop 12% of all pairs
    Smell alikemoderate
    Cooked together947 recipes

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Melon
Becomes the translucent, tender body of the preserve as it cooks in syrup.
White sugar
Sweetens the preserve and, at high concentration, helps it turn clear and keep well.
Lemon juice
Adds acidity that brightens the flavor and helps balance the sweetness.
Green ginger
Infuses the water with a warm, pungent aroma that flavors the syrup.

The step that matters

Boil the melon until clear. Stop too early and the pieces stay opaque and firm; cook too long and they break down. Watching for clarity signals that the sugar and fruit have become translucent.

Swap the lemon

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

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

Fit is the average pairing score against melon, sugar, ginger, peach. 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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