Why it works: Mustard and celery are a kitchen classic. They rank in the top 2% of all ingredient pairs, and cooks put them together in 4,169 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
Chow Chow
Ingredients
Directions
Prepare the tomatoes
Sprinkle chopped green tomatoes with coarse sea salt and let stand overnight.
Drain and press out all the water from the tomatoes.
Cook
In a large kettle, combine the tomatoes, cabbage, pickles, onions, red peppers, brown sugar, white mustard seed, ground mustard, celery seed, and turmeric.
Cover the mixture with apple vinegar and boil for 30 minutes.
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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Mustard + celerytop 2% of all pairsSmell alikemoderateCooked together4,169 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Mustard + turmerictop 3% of all pairsSmell alikestrongCooked together2,279 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Cabbage + mustardtop 3% of all pairsSmell alikestrongCooked together1,645 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Green tomatoes
- Provide the main bulk; salting and pressing remove water so the relish keeps its body.
- Cabbage
- Adds crisp texture and bulk that holds up through the long boil.
- Onions
- Add savory depth and aroma that mellow as they cook in the vinegar.
- Brown sugar
- Adds sweetness and balances the sharpness of the vinegar and pickles.
- Apple vinegar
- Provides acidity that preserves the mixture and brightens its flavor.
- White mustard seed
- Contributes sharp, pungent flavor that softens and mellows during boiling.
The step that matters
Draining the salted tomatoes. Salting draws water out of the tomatoes; if they are not pressed dry, the extra liquid dilutes the vinegar and sugar, leaving the chow chow watery and less well preserved.
Swap the tomato
How well each one fits the dish's main ingredients (cabbage, onion, pepper, sugar, mustard, celery, turmeric):
- Horseradishfits better
- Broccolifits better
- Turnipfits better
- Tomatothe original
Fit is the average pairing score against cabbage, onion, pepper, sugar, mustard, celery, turmeric. 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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