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 Cream Sauce
Ingredients
Directions
Make the tomato base
Combine ½ can of tomatoes, 2 slices of onion, 1 piece of bay leaf, and 1 stalk of celery in a saucepan.
Simmer the mixture for 10 minutes.
Strain the simmered mixture.
Make the cream sauce
Melt 2 tablespoons of butter in another saucepan.
Add 2 tablespoons of flour to the melted butter and stir until blended.
Gradually add 1 cup of milk, stirring until it bubbles.
Stir in 1 teaspoon of salt and a few grains of cayenne.
Combine and serve
Measure 1 cup of the strained tomato and stir in ¼ teaspoon of baking soda.
Add the tomato mixture to the cream sauce and heat until hot.
Serve immediately.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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
- Butter
- Melted with flour to form the roux that thickens the sauce and adds richness.
- Flour
- Thickens the butter and milk into a smooth, creamy sauce body.
- Milk
- Forms the creamy liquid base that the roux thickens into sauce.
- Strained tomato
- Provides the main tomato flavour and liquid for the finished sauce.
- Baking soda
- Neutralises some tomato acidity, mellowing the sharpness and softening the flavour.
The step that matters
Adding the baking soda to the tomato. Baking soda reacts with acid and releases carbon dioxide, so it foams up. Add only the measured amount, since too much leaves a soapy, bitter taste. Stir it in fully before combining with the cream sauce.
Swap the onion
How well each one fits the dish's main ingredients (tomato, celery, butter, flour, milk):
- Potatofits better
- Carrotfits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against tomato, celery, butter, flour, milk. 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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