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Dessert

Watermel or Citron Preserves

Preserves made from watermelon rind or citron, sweetened with sugar and cinnamon, and preserved in a syrup.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Cinnamon and ginger match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,380 recipes. Both carry estragole, which smells anise, licorice. The science ↓

Watermel or Citron Preserves

Ingredients

Directions

Prepare the rind

  1. Peel the watermelon rind.

  2. Remove the green and pink parts.

  3. Cut the rind into desired shapes.

  4. Combine the rind with 1 gallon of water, salt, and alum in a large pot.

  5. Let the mixture stand until brittle.

  6. Drain the rind.

  7. Place the rind in a vessel.

  8. Cover the rind with enough water and add ginger.

  9. Cook until tender.

Make the syrup and cook

  1. Make a syrup by combining sugar, water, and cinnamon in a separate pot.

  2. Drain the rind.

  3. Add the rind and ginger to the syrup.

  4. Cook until the syrup thickens, about 30 minutes to 1 hour.

Jar and seal

  1. Transfer the preserves to jars.

  2. Let the preserves cool.

  3. Cover the preserves with paraffin.

  4. Seal the jars.

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. Cinnamon + gingertop 1% of all pairs
    Smell alikestrong
    Cooked together6,380 recipes

    Shared aroma: estragole (anise, licorice).

  2. Melon + gingertop 7% of all pairs
    Smell alikemoderate
    Cooked together342 recipes

    Shared aroma: methyl 2-methylbutyrate (fruity, apple).

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

    Shared aroma: guaiacol (smoky, sweet).

  4. Melon + cinnamontop 11% of all pairs
    Smell alikemoderate
    Cooked together241 recipes

    Shared aroma: cinnamyl acetate (sweet aromatic, cinnamon).

  5. Sugar + gingertop 17% of all pairs
    Smell alikelow
    Cooked together14,054 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

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

Melon rind
Forms the bulk of the preserve and becomes tender and translucent during cooking.
Alum
Firms the rind so it keeps its shape and does not turn mushy during long cooking.
Sugar
Sweetens the preserve and, once concentrated in the syrup, helps preserve it.
Ginger root
Adds a sharp, aromatic flavor that balances the sweetness of the syrup.

The step that matters

Cook until the syrup thickens. Cooking long enough concentrates the sugar so the syrup sets and the rind becomes glossy and well preserved. Stopping early leaves a thin, runny syrup that can spoil sooner.

Swap the melon

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

  1. Vanillafits better
  2. Raisinfits better
  3. Orangefits better
  4. Melonthe original

Fit is the average pairing score against sugar, cinnamon, ginger. 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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