Why it works: Cinnamon and pepper match in chemistry and in kitchens. They rank in the top 9% of all ingredient pairs, and cooks put them together in 4,890 recipes. Both carry methyl cinnamate, which smells strawberry. The science ↓
Currant Catsup
Ingredients
Directions
Stew the currants and sugar in a pot until the mixture is quite thick.
Add the cinnamon, salt, pepper, and vinegar to the thickened mixture.
Bottle the catsup for use.
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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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).
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Currant + vinegartop 13% of all pairsSmell alikelowCooked together693 recipes
Shared aroma: isoamyl acetate (banana, pear).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Currant + cinnamontop 15% of all pairsSmell alikelowCooked together4,099 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
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
- Currants
- Provide the fruit base and natural pectin that thickens the mixture as it stews.
- Sugar
- Adds sweetness and, with reduction, helps thicken and preserve the cooked fruit.
- Vinegar
- Adds acidity that sharpens the flavour and helps keep the finished ketchup stable.
The step that matters
Stewing until quite thick. The currants and sugar must cook down far enough for the pectin and sugar to set the mixture. If it is bottled too thin, it can spoil or stay runny. Cooking it fully before adding the vinegar and spices gives a stable, spreadable result.
Swap the currant
How well each one fits the dish's main ingredients (sugar, cinnamon, pepper, vinegar):
- Lemonfits better
- Limefits better
- Plumfits better
- Currantthe original
Fit is the average pairing score against sugar, cinnamon, pepper, 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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