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 ↓
Chowchow Pickle
Ingredients
Directions
Prepare the vegetables
Combine cabbage, onions, green peppers, green tomatoes, and horseradish in a large bowl.
Cover with coarse sea salt and water, then boil until tender.
Strain the mixture through a sieve.
Pickle
In a pot, boil vinegar, turmeric, and white mustard seed.
Pour the hot mixture over the vegetables.
Once cooled, add the mixed mustard and celery seed.
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).
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Cabbage + horseradishtop 2% of all pairsSmell alikestrongCooked together481 recipes
Shared aroma: coumarin (sweet, hay).
-
Turmeric + mustardtop 3% of all pairsSmell alikestrongCooked together2,279 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Horseradish + turmerictop 3% of all pairsSmell alikestrongCooked together437 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
- Cabbage
- Provides the bulk of the crunchy texture in the relish.
- Green tomatoes
- Add tartness and body that holds up to long pickling.
- Vinegar
- Supplies the acidity that preserves and sharpens the pickle.
- White mustard seed
- Adds a sharp, pungent flavour that mellows during pickling.
- Horseradish
- Contributes a hot, pungent bite to the mixture.
- Onions
- Add savoury depth and sweetness as they soften in the boil.
The step that matters
Straining before pouring the hot vinegar. Vegetables that still hold excess water dilute the vinegar brine, weakening its acidity and shortening how long the pickle keeps well. Draining thoroughly lets the hot vinegar mixture penetrate and preserve the vegetables properly.
Swap the tomato
How well each one fits the dish's main ingredients (cabbage, onion, pepper, horseradish, vinegar, turmeric, mustard):
- Broccolifits better
- Cauliflowerfits better
- Radishfits better
- Tomatothe original
Fit is the average pairing score against cabbage, onion, pepper, horseradish, vinegar, turmeric, mustard. 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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