Why it works: Horseradish and mustard match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,832 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Inexpensive Chow-chow
Ingredients
Directions
Prepare the vegetables
Slice the cabbages and onions thinly, then sprinkle with coarse sea salt.
The next day, drain the vegetables and place them in a pot with the vinegar.
Cook and jar
Bring the mixture to a boil, then add all the other ingredients.
Cook for about 15 minutes.
Transfer the chow-chow into jars and seal.
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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Horseradish + mustardtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + garlictop 1% of all pairsSmell alikestrongCooked together29,058 recipes
Shared aroma: furaneol (caramel, strawberry).
-
Mustard + celerytop 2% of all pairsSmell alikemoderateCooked together4,169 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Cabbage + horseradishtop 2% of all pairsSmell alikestrongCooked together481 recipes
Shared aroma: coumarin (sweet, hay).
-
Cabbage + mustardtop 3% of all pairsSmell alikestrongCooked together1,645 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cabbages
- Form the bulk of the relish and, once salted and drained, give it a crisp, tender texture.
- Onions
- Add savory sweetness and bulk, softening as they cook in the vinegar.
- Vinegar
- Provides the acidity that preserves the vegetables and gives the relish its tang.
- Brown sugar
- Balances the sharpness of the vinegar with sweetness and helps round out the flavor.
- White mustard seed
- Contributes sharp, pungent heat that mellows during cooking.
The step that matters
Salting and draining the vegetables. Salt draws water out of the cabbage and onions through osmosis. Draining well before adding the vinegar keeps the relish crisp and stops it from becoming watery and diluted.
Swap the onion
How well each one fits the dish's main ingredients (cabbage, horseradish, pepper, mustard, sugar, celery, garlic):
- Broccolifits better
- Turnipfits better
- Beetrootfits better
- Onionthe original
Fit is the average pairing score against cabbage, horseradish, pepper, mustard, sugar, celery, garlic. 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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