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To Preserve Citron Melon

A method for preserving citron melon by boiling, syruping, and cooling.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 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 ↓

To Preserve Citron Melon

Ingredients

Directions

Prepare the melon

  1. Peel the melon.

  2. Slice the melon.

  3. Boil water with peach leaves and alum. Add the melon and boil until soft.

  4. Soak the melon in cold water for 1 hour.

Make the syrup

  1. Make a syrup with an equal weight of sugar to the melon.

  2. Add lemons according to the quantity of melon.

  3. Skim the syrup.

  4. Add the melon to the syrup and boil for 20 minutes.

Finish

  1. If the syrup is thick when cold, pour it out. If not, boil more and add sugar.

  2. When cold, enhance with a little preserved ginger root.

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. Peach + gingertop 8% of all pairs
    Smell alikemoderate
    Cooked together218 recipes

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

  5. Peach + lemontop 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

Citron melon
Forms the main body of the preserve and absorbs the syrup as it cooks.
Sugar
Sweetens the preserve and thickens the syrup, helping it set as it cools.
Lemons
Adds acidity that brightens the sweetness and balances the syrup.
Alum
Firms the melon's flesh so it holds its shape during long boiling.

The step that matters

Judging the syrup when cold. Sugar syrup thickens noticeably as it cools, so testing only while hot can mislead. If it is too thick when cold, the preserve can turn stiff or crystallise, so the cook should check consistency once cooled and adjust by boiling with more sugar if needed.

Swap the ginger

The recipe marks ginger as optional. How well each one fits the dish's main ingredients (melon, peach, sugar, lemon):

  1. Peppermintfits about as well
  2. Cinnamonfits about as well
  3. Gingerthe original
  4. Basilfits less well

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