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Dessert

Watermelon Preserves

Preserves made from watermelon rind, sugar, and lemon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 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 ↓

Watermelon Preserves

Ingredients

Directions

Prepare the rind

  1. Cut the green rind off the watermelon and remove most of the red flesh.

  2. Cut the rind into small pieces and wash them.

Macerate with sugar

  1. Cover the rind pieces with sugar, using half the weight of the rind in sugar, and let it stand overnight.

Cook the preserves

  1. Drain the juice from the rind and boil it until thick.

  2. Add the rind pieces and enough sliced lemon to flavor, ensuring all seeds are removed from the lemon.

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 carries its texture once cooked until tender and translucent.
Sugar
Draws moisture out of the rind and, once boiled down, sets into a thick syrup that preserves it.
Lemon
Adds acidity and bright flavor that balances the sweetness of the syrup.

The step that matters

Boiling the drained syrup until thick. Sugar must concentrate to a thick syrup for the preserve to set and keep. Stopping too early leaves a runny product that spoils more readily, while overcooking makes it hard and candy-like.

“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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