Why it works: Currant and vinegar work together. They rank in the top 13% of all ingredient pairs, and cooks put them together in 693 recipes. Both carry isoamyl acetate, which smells banana, pear. The science ↓
Currant Catsup
Ingredients
Directions
Combine currants, sugar, vinegar, mixed pepper, and salt in a pot.
Boil the mixture for 30 minutes.
Bottle the catsup while hot.
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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Currant + vinegartop 13% of all pairsSmell alikelowCooked together693 recipes
Shared aroma: isoamyl acetate (banana, pear).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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Currant + sugartop 26% of all pairsSmell alikelowCooked together12,256 recipes
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Currant + peppertop 28% of all pairsSmell alikelowCooked together1,345 recipes
Shared aroma: isoamyl acetate (banana, pear).
Currant and sugar barely smell alike, yet cooks put them together in 12,256 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 main fruit body, pectin and tartness that form the ketchup's base.
- Sugar
- Adds sweetness and body, and helps preserve the thick, spreadable texture.
- Vinegar
- Adds acidity that balances the sweetness and helps keep the ketchup stable.
- Mixed red and black pepper
- Adds pungent heat and aroma to the sauce.
The step that matters
Boil the mixture for 30 minutes. Boiling drives off water and lets the fruit's pectin and sugar thicken the sauce. Too short a boil leaves it thin and more prone to spoiling in the bottle.
Swap the currant
How well each one fits the dish's main ingredients (sugar, vinegar, pepper):
- Lemonfits better
- Cherryfits better
- Limefits better
- Currantthe original
Fit is the average pairing score against sugar, vinegar, 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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