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Dessert

Watermelon Pickle

A pickled watermelon rind prepared with vinegar, cloves, sugar, and cinnamon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Clove and cinnamon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,189 recipes. Both carry ethyl cinnamate, which smells sweet, balsamic. The science ↓

Watermelon Pickle

Ingredients

Directions

Prepare the rind

  1. Cook the watermelon rind in clear water until tender.

  2. Drain the rind for 5 hours.

Make and combine

  1. Make a syrup by boiling vinegar, cloves, sugar, and cinnamon.

  2. Add the watermelon rind to the syrup and heat thoroughly.

  3. Can and seal the mixture.

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. Clove + cinnamontop 1% of all pairs
    Smell alikestrong
    Cooked together14,189 recipes

    Shared aroma: ethyl cinnamate (sweet, balsamic).

  2. Sugar + cinnamontop 10% of all pairs
    Smell alikelow
    Cooked together30,779 recipes

    Shared aroma: guaiacol (smoky, sweet).

  3. Vinegar + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together20,806 recipes

    Shared aroma: beta-damascenone (apple, rose).

  4. Vinegar + clovetop 15% of all pairs
    Smell alikemoderate
    Cooked together10,386 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Vinegar + cinnamontop 19% of all pairs
    Smell alikemoderate
    Cooked together5,187 recipes

    Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).

Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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 pickle and becomes tender and firm-textured when cooked and soaked in syrup.
Vinegar
Provides acidity that preserves the pickle and gives it its tangy flavor.
White sugar
Sweetens the syrup and balances the sharpness of the vinegar.
Whole cloves
Adds warm, aromatic spice flavor to the syrup.
Cinnamon
Adds sweet, woody aroma and warmth to the syrup.

The step that matters

Heat the rind thoroughly in the syrup before canning. The rind must be heated all the way through in the acidic, sugared syrup so it softens and absorbs flavor, and the hot mixture helps the sealed jars keep safely. Uneven heating leaves cool pockets where the rind stays firm and spoilage can begin.

Swap the clove

How well each one fits the dish's main ingredients (vinegar, sugar, cinnamon):

  1. Allspicefits about as well
  2. Nutmegfits about as well
  3. Clovethe original
  4. Cardamomfits about as well

Fit is the average pairing score against vinegar, sugar, cinnamon. Candidates are from the same food group and used in at least 100 recipes.

“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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