Why it works: Tomato and cucumber are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 2,405 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Chow Chow
Ingredients
Directions
Prepare
Chop the tomatoes, onions, peppers, cucumbers, and cabbage finely.
Sprinkle the salt over the chopped vegetables and let them stand overnight.
In the morning, drain off the brine.
Cook
Add the celery seed, turmeric, brown sugar, cinnamon, allspice, and cloves to the vegetables.
Cover the mixture with vinegar and boil slowly for 2 hours.
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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Tomato + cucumbertop 4% of all pairsSmell alikemoderateCooked together2,405 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Celery + turmerictop 4% of all pairsSmell alikestrongCooked together1,356 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Tomato + celerytop 4% of all pairsSmell alikemoderateCooked together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Cucumber + turmerictop 5% of all pairsSmell alikestrongCooked together1,102 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Coarse sea salt
- Draws water out of the vegetables, softening them and leaving them crisp-tender rather than soggy.
- Brown sugar
- Adds sweetness that balances the sharp vinegar and the warm spices.
- Vinegar
- Provides acidity that preserves the vegetables and gives the relish its tang.
- Cabbage
- Forms the bulk of the relish, contributing body and a firm texture after cooking.
The step that matters
Drain off the brine in the morning. Salt pulls liquid out of the vegetables overnight. Pouring off that brine removes excess salt and water, so the relish cooks thick and is not overly salty or watery.
Swap the onion
How well each one fits the dish's main ingredients (tomato, pepper, cucumber, cabbage, celery, turmeric, sugar):
- Capsicumfits better
- Cauliflowerfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against tomato, pepper, cucumber, cabbage, celery, turmeric, sugar. 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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