Why it works: Cinnamon and clove 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 ↓
Red Currant Ketchup
Ingredients
Directions
Prepare the currants
Put the currants in a preserving kettle and boil until soft.
Push the currants through a fine sieve to remove seeds and skins.
Make the ketchup
Add vinegar, sugar, cinnamon, red pepper, cloves, allspice, and salt to the strained currants.
Boil for 20 minutes or until desired thickness is reached.
Seal in jars while boiling 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.
-
Cinnamon + clovetop 1% of all pairsSmell alikestrongCooked together14,189 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
-
Clove + allspicetop 1% of all pairsSmell alikestrongCooked together7,874 recipes
Shared aroma: estragole (anise, licorice).
-
Cinnamon + allspicetop 1% of all pairsSmell alikestrongCooked together5,536 recipes
Shared aroma: estragole (anise, licorice).
-
Pepper + clovetop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Pepper + allspicetop 5% of all pairsSmell alikestrongCooked together6,395 recipes
Shared aroma: estragole (anise, licorice).
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, with pectin and acidity that help the ketchup thicken as it cooks.
- Sugar
- Adds sweetness and, as it dissolves and concentrates, helps the ketchup thicken and preserve.
- Vinegar
- Adds acidity that brightens the flavour and helps preserve the ketchup.
The step that matters
Boil until thick, then seal while hot. Currants thicken mainly by pectin and sugar concentrating as water evaporates. Stopping too early leaves the ketchup runny, and sealing it while boiling hot helps drive air out of the jars so it keeps better.
Swap the currant
How well each one fits the dish's main ingredients (vinegar, sugar, cinnamon, pepper, clove, allspice):
- Limefits better
- Orangefits better
- Lemonfits better
- Currantthe original
Fit is the average pairing score against vinegar, sugar, cinnamon, pepper, clove, allspice. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Raspberry Vinegar214 recipes
Sugar Vinegar20 recipes
Black Currant Cordial11 recipes
Cinnamon Tincture10 recipes