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Dessert

Watermel Rind Preserve

A preserved condiment made by boiling watermelon rind with salt, water, sugar, and lemon peel or ginger.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sugar and lemon 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 ↓

Watermel Rind Preserve

Ingredients

Directions

Prepare the rind

  1. Soak the watermelon rind in salt and water overnight.

  2. Boil the rind in clear water three times, adding a piece of alum in the second boiling.

  3. Cover the rind with leaves while boiling.

  4. After each boil, transfer the rind to cold water until cool.

  5. When the rind can be pierced with a straw, it is done.

Make the syrup and cook

  1. Prepare a syrup with 1¼ pounds of sugar for each pound of rind.

  2. Drain the rind.

  3. Add the rind to the syrup along with lemon peel or green ginger.

  4. Boil slowly until the rind is completely transparent.

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. 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

Watermelon rind
Forms the bulk of the preserve and turns tender and translucent as it cooks in syrup.
Sugar
Sweetens the preserve and, at high concentration, helps preserve it and make the rind transparent.
Lemon peel
Adds aromatic oils and a bright, acidic flavour that balances the sweetness.

The step that matters

Boil the rind until it can be pierced with a straw. Rind that is undercooked stays firm and fibrous, while overcooking can make it collapse. Testing for a straw-piercing texture between boils shows when the rind has softened enough to absorb syrup.

“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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