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Dessert

Preserved Watermelon Rind

A preserved watermelon rind dish made by brining, scalding, boiling, and sweetening with sugar and lemon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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

  1. Scrape the green side of the rind and cut it into 2‑inch pieces. Soak the rind in weak brine overnight. Rinse the rind in clear water.

Firm and scald

  1. Soak the rind in weak alum water. Heat and scald the rind. Rinse the rind again in clear water. Boil the rind until tender.

Make the syrup

  1. Add ¾ pound of sugar for every pound of rind. Let the rind stand overnight. Boil the rind in syrup until clear. Add sliced lemon (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 tender and translucent after cooking in syrup.
Sugar
Sweetens the rind and, as syrup, replaces its water so it turns clear and keeps well.
Alum
Firms the rind's cell structure so it stays crisp rather than turning soft during cooking.
Lemons
Add acidity that brightens the sweet syrup and balances the flavour.

The step that matters

Boil the rind in syrup until clear. Sugar syrup slowly draws water out of the rind and fills its tissue. Stopping too early leaves the rind opaque and less preserved, so the cook should watch for the rind to turn clear.

“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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