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Dessert

Preserved Watermelon Rind

A method for preserving watermelon rind by salting, soaking, scalding, boiling, and sweetening with sugar and lemon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 ↓

Preserved Watermelon Rind

Ingredients

Directions

Prepare the rind

  1. Scrape the green side of the rind and cut it into 2‑inch pieces.

  2. Soak the rind in weak brine overnight.

  3. The next day, rinse in clear water and heat.

Firm and tenderize

  1. Soak in weak alum water and scald.

  2. Rinse again in clear water and boil until tender.

Preserve in syrup

  1. For every pound of rind, use ½ pound of sugar and let it stand overnight.

  2. The next day, boil in syrup with sliced lemon, using 2 lemons for every gallon of rind.

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 body of the preserve, becoming translucent and tender as it cooks in syrup.
Sugar
Draws moisture out of the rind and preserves it, giving the finished pieces sweetness.
Lemons
Add acidity and aroma that brighten the sweet syrup.
Coarse sea salt
Brine softens and seasons the rind during the initial overnight soak.

The step that matters

Boil until tender before adding syrup. The rind must be fully softened before the sugar is added, because sugar hardens the cell walls and slows softening. Rinsing well after the alum water also removes residue that would affect flavour and texture.

“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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