Why it works: Cucumber and tomato 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 the vegetables
Chop the onions and pour hot water over them, then let stand for 10 minutes.
Chop the cabbage, cucumbers, green peppers, and green tomatoes finely.
Sprinkle salt over the chopped vegetables and add the onions.
Let the mixture stand overnight.
Drain for 2 hours.
Pickle and season
Pour weakened cold vinegar over the mixture and let stand for 24 hours.
Pour off the vinegar.
Add 1/2 pound of sugar for every gallon of the mixture.
Add good vinegar.
Season with mixed spice, cloves, mustard, and turmeric for color.
Heat the vinegar until it boils and pour it over the mixture.
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.
-
Cucumber + tomatotop 4% of all pairsSmell alikemoderateCooked together2,405 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + clovetop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Cabbage + peppertop 5% of all pairsSmell alikemoderateCooked together4,081 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cabbage + cucumbertop 5% of all pairsSmell alikestrongCooked together722 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 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 bulk and a crisp texture that holds up through the pickling.
- Green tomatoes
- Add tartness and body, and their pectin helps the relish thicken.
- Cucumbers
- Contribute crunch and moisture that the salt draws out during standing.
- Sugar
- Balances the sharpness of the vinegar and adds sweetness.
- Vinegar
- Provides acidity that preserves the vegetables and gives the relish its tang.
The step that matters
Salting and draining the vegetables. Salt draws water out of the chopped vegetables by osmosis. Draining well before adding vinegar and sugar keeps the relish crisp and stops it from turning watery.
Swap the onion
How well each one fits the dish's main ingredients (cabbage, cucumber, pepper, tomato, sugar, vinegar, clove):
- Capsicumfits better
- Mustardfits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against cabbage, cucumber, pepper, tomato, sugar, vinegar, clove. 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.
Delicate Cake246 recipes
Boiled Frosting69 recipes
Citron Cake68 recipes
Scotch Cake63 recipes