Why it works: Tomato and celery are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 3,377 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Celery Sauce
Ingredients
Directions
Prepare
Chop the onions and peppers very fine.
Peel the tomatoes.
Cook and bottle
Boil all ingredients together for 14 hours.
Bottle in airtight jars.
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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Tomato + celerytop 4% of all pairsSmell alikemoderateCooked together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 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
- Tomatoes
- Form the bulk of the sauce and provide moisture and a fresh, tangy base.
- Onions
- Add savoury depth and sweetness as they soften during long cooking.
- Red peppers
- Contribute sweetness, colour and a mild, vegetal flavour.
- Sugar
- Adds sweetness that balances the sharpness of the vinegar and tomatoes.
- Vinegar
- Adds acidity for a sharp tang and helps preserve the sauce.
- Celery
- Adds a fresh, herbal aroma and savoury flavour to the sauce.
The step that matters
Boil all ingredients together for 14 hours. Long boiling evaporates water and concentrates flavour while softening the vegetables. Without regular stirring, the thick sauce can scorch on the bottom of the pot, leaving a burnt taste.
Swap the onion
How well each one fits the dish's main ingredients (tomato, pepper, sugar, vinegar, celery):
- Capsicumfits better
- Mustardfits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against tomato, pepper, sugar, vinegar, 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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