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Watermelon Preserves

Preserved watermelon rind in lemon‑scented syrup.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Lemon and sugar 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 ↓

Watermelon Preserves

Ingredients

Directions

Prepare the rind

  1. Cut the watermelon in half.

  2. Remove the soft inside, leaving only the firm white rind.

  3. Scrape off the green outside.

  4. Cut the rind into fancy shapes.

  5. Boil the rind pieces in enough water to cover them.

  6. Add fresh lemon skins to color them yellow.

  7. Once tender, remove the pieces.

  8. Let them cool in dishes.

Make the syrup

  1. Make a syrup by combining 1 pound of sugar with 1 teacup of water for each pound of melon.

  2. Dissolve the sugar in the hot water.

Cook and preserve

  1. Add the melon pieces.

  2. Boil until clear.

  3. Flavor with slices of lemon.

  4. When the melon is transparent, remove it with a skimmer.

  5. Boil the syrup down until thick.

  6. Pour the thick syrup over the fruit in jars.

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

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

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

Watermelon rind
Provides the bulk of the preserve and, once cooked tender and then syruped, becomes translucent and chewy.
Sugar
Sweetens the preserve and, as the syrup thickens, helps preserve the fruit and give it a clear, glossy look.
Lemon skins
Adds aroma and a bright citrus flavor that balances the sweetness of the syrup.

The step that matters

Boil the syrup down until thick. Sugar concentration determines whether the preserve keeps and sets. If the syrup is not boiled down far enough, it stays thin and the fruit can spoil sooner.

“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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