Why it works: Clove and lemon match in chemistry and in kitchens. They rank in the top 10% of all ingredient pairs, and cooks put them together in 8,150 recipes. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓
Watermelon Preserves
Ingredients
Directions
Prepare the rind
Remove the dark-green rind and scrape the soft pulp from the watermelon.
Cut the rind into pieces about 2 inches long and 1½ inches wide.
Soak the pieces in brine overnight, then rinse in clear running water.
Soak the rind overnight in a strong alum solution. Rinse again in running water and soak another night in clear water.
Make the syrup and cook
Weigh the melon and measure out an equal weight of sugar.
In a preserving kettle, combine the sugar with just enough water to dissolve it. Boil the syrup hard for 15 minutes, then drop in the melon pieces.
Boil slowly for at least 3 hours.
Place the squares on platters and set them in the hot sun to bleach for 1 hour.
Spice and pack
Add the cloves, lemon juice, lemon rind, and vinegar to the syrup. Boil the melon in this spiced syrup for about 10 minutes.
Remove to bleach again, then return to heat in the syrup.
Pack the melon into jars with syrup, ensuring the syrup does not darken or boil while bleaching.
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.
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Clove + lemontop 10% of all pairsSmell alikestrongCooked together8,150 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Melon + clovetop 11% of all pairsSmell alikemoderateCooked together232 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Melon + lemontop 14% of all pairsSmell alikemoderateCooked together362 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Melon + vinegartop 15% of all pairsSmell alikemoderateCooked together416 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Watermelon rind
- Forms the firm, crisp pieces that hold their shape through long cooking.
- Sugar
- Sweetens the preserve and, with long boiling, thickens the syrup and preserves the melon.
- Alum
- Firms the rind so it stays crisp rather than turning soft during cooking.
- Lemon juice
- Adds acidity that brightens the sweet syrup and balances its flavour.
- Vinegar
- Adds sharp acidity that balances the sugar and helps preserve the syrup.
- Cloves
- Contributes warm spiced aroma to the syrup and melon.
The step that matters
Keep the syrup from darkening or boiling during bleaching. Boiling or overheating the syrup while the melon bleaches in the sun can darken the pieces and make them tough, spoiling the pale, translucent look and texture.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, melon, clove, vinegar):
- Vanillafits better
- Pearfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against sugar, melon, clove, vinegar. 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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