Why it works: Celery and mustard 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 the tomatoes
Remove seeds from the tomatoes and cut them in half.
Cook the tomatoes until soft, then strain through a colander and measure the liquid.
Make the sauce
In a large pot, combine the measured tomatoes with the chopped sweet and sharp peppers, onions, vinegar, sugar, salt, celery seed, mustard seed, cinnamon, and grated nutmeg.
Cook the mixture over medium heat until it thickens.
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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Celery + mustardtop 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
- Ripe tomatoes
- Provide the main body and liquid that becomes the sauce base.
- Onions
- Add savory depth and bulk as they soften into the sauce.
- Vinegar
- Adds acidity that gives the sauce its tang and helps preserve it.
- Sugar
- Adds sweetness that balances the vinegar and sharp peppers.
- Sweet peppers
- Contribute body, mild sweetness and vegetable flavor to the sauce.
- Sharp peppers
- Add heat and pungency that give the sauce its character.
The step that matters
Cook the mixture over medium heat until it thickens. Cooking drives off water and concentrates the sugars and solids, so the sauce thickens. Heat that is too high can scorch the sugars and sugary sauces stick to the pot, so stirring and moderate heat matter.
Swap the onion
How well each one fits the dish's main ingredients (tomato, pepper, vinegar, sugar, celery, mustard, cinnamon):
- Capsicumfits better
- Lettucefits better
- Horseradishfits better
- Onionthe original
Fit is the average pairing score against tomato, pepper, vinegar, sugar, celery, mustard, cinnamon. 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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