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 ↓
Tomato Sauce
Ingredients
Directions
Make the tomato base
Place the tomatoes in a saucepan and pour over the stock.
Add the salt and pepper, then cut off the celery stalk and add it.
Cook slowly over the fire for 30 minutes.
Set a wire sieve over a basin and rub the tomatoes and stock through it.
Thicken and finish
In a separate saucepan, melt the butter and add the flour, stirring well.
Pour the mixture over the strained tomatoes and stock, stirring over the fire until boiling.
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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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + celerytop 15% of all pairsSmell alikemoderateCooked together6,905 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Provide the main body, flavour and acidity of the sauce once cooked and strained.
- Butter
- Adds richness and a smooth mouthfeel to the sauce.
- Flour
- Thickens the sauce when cooked with butter into a roux.
- Stock
- Adds savoury depth and liquid to cook and dissolve the tomatoes.
The step that matters
Stirring the roux into the boiling sauce. Flour mixed with hot butter forms a roux; adding it to hot liquid while stirring constantly prevents lumps and lets starch swell evenly for a smooth, thickened sauce.
Swap the tomato
How well each one fits the dish's main ingredients (butter, flour, pepper, celery):
- Carrotfits better
- Leekfits better
- Turnipfits better
- Tomatothe original
Fit is the average pairing score against butter, flour, 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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