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 ↓
Green Tomato Pickle
Ingredients
Directions
Prepare
Slice the green tomatoes and onions, layer them in a bowl, and sprinkle with coarse sea salt. Let them stand overnight.
The next day, drain the mixture well and place it in a kettle.
Cook
Cover with vinegar and add mixed spice, brown sugar, mustard, celery seed, and cayenne pepper.
Boil for half an hour.
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).
-
Tomato + celerytop 4% of all pairsSmell alikemoderateCooked together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Green tomatoes
- Provide the bulk of the pickle and firm texture once salted and cooked.
- Onions
- Add savory flavor and body that softens as the pickle cooks.
- Coarse sea salt
- Draws moisture out of the tomatoes and onions, firming them and concentrating flavor.
- Vinegar
- Provides the sharp acidity that preserves and balances the sweetness.
- Brown sugar
- Adds sweetness and a molasses note that offsets the acidity.
The step that matters
Draining after the overnight salting. Salt draws out water from the tomatoes and onions; draining them well keeps excess liquid from diluting the vinegar and sugar syrup, so the pickle sets properly and tastes concentrated rather than watery.
Swap the onion
How well each one fits the dish's main ingredients (tomato, vinegar, sugar, mustard, celery, pepper):
- Capsicumfits better
- Lettucefits better
- Horseradishfits better
- Onionthe original
Fit is the average pairing score against tomato, vinegar, sugar, mustard, celery, pepper. 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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