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 ↓
Chili Sauce
Ingredients
Directions
Prepare
Chop the tomatoes, onions, and red peppers.
Put them into a kettle with the finely chopped celery.
Cook
Add the vinegar, sugar, and spices.
Cook slowly for 2 to 3 hours.
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).
-
Pepper + celerytop 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).
-
Mustard + cinnamontop 7% of all pairsSmell alikestrongCooked together1,581 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
- Tomatoes
- Provide the bulk and liquid that form the bbulk of the sauce.
- Onions
- Add sweetness and aromatic depth as they soften during long cooking.
- Vinegar
- Adds acidity that sharpens flavor and helps keep the sauce preserved.
- Sugar
- Adds sweetness that balances the acidity of the vinegar.
- Mustard seed
- Contributes pungent, slightly bitter flavor that deepens during cooking.
The step that matters
Cook slowly for 2 to 3 hours. Low, gradual heat lets water evaporate so the sauce thickens without scorching on the bottom. Stirring keeps sugars from burning and lets the flavors meld.
Swap the onion
How well each one fits the dish's main ingredients (tomato, mustard, vinegar, cinnamon, sugar, pepper, celery):
- Capsicumfits better
- Lettucefits better
- Horseradishfits better
- Onionthe original
Fit is the average pairing score against tomato, mustard, vinegar, cinnamon, sugar, pepper, celery. 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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