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 ↓
Grape Catsup
Ingredients
Directions
Prepare the grapes
Boil grapes in water until soft.
Pass through a colander to remove skins and seeds.
Make the ketchup
In a pot, combine the grape mixture with sugar, vinegar, cloves, cinnamon, pepper, and salt.
Boil until slightly thickened.
Bottle and seal the catsup.
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 + cinnamontop 1% of all pairsSmell alikestrongCooked together14,189 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
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Clove + peppertop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Grape + cinnamontop 9% of all pairsSmell alikemoderateCooked together3,164 recipes
Shared aroma: anethole (sweet, anise).
-
Cinnamon + peppertop 9% of all pairsSmell alikestrongCooked together4,890 recipes
Shared aroma: methyl cinnamate (strawberry).
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Sugar + cinnamontop 10% of all pairsSmell alikelowCooked together30,779 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Grapes
- Provide the main fruit body, pectin, and natural sweetness and acidity for the ketchup.
- Sugar
- Adds sweetness and, as it dissolves and concentrates, helps thicken the ketchup and preserve it.
- Vinegar
- Adds acidity that balances the sweetness and helps preserve the ketchup.
The step that matters
Boil until slightly thickened. Sugar and fruit solids concentrate as water evaporates, and the cook must stop at the right point. Too little boiling leaves it thin and watery; too much makes it stiff and candy-like as it cools.
Swap the grape
How well each one fits the dish's main ingredients (sugar, vinegar, clove, cinnamon, pepper):
- Limefits better
- Cherryfits better
- Figfits better
- Grapethe original
Fit is the average pairing score against sugar, vinegar, clove, cinnamon, pepper. 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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