Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Cream Tomato Soup
Ingredients
Directions
Make the cream base
In a stewpan, stir together the flour and melted butter until smooth.
Cook the mixture slowly, adding the boiling milk while stirring until smooth and creamy.
Add salt and pepper to taste.
Add the tomatoes and serve
Stew the canned tomatoes, then strain them through a sieve.
While hot, add the strained tomatoes to the cream mixture.
Cook thoroughly together and serve.
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.
Photo for illustrative purposes only · Contact us to use it
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + tomatotop 15% of all pairsSmell alikemoderateCooked together2,226 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
Flour and butter 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
- Flour
- Thickens the milk into a smooth, creamy base when cooked with butter.
- Melted butter
- Coats the flour so it blends smoothly and adds richness to the soup.
- Boiling milk
- Forms the creamy body of the soup as it thickens with the flour.
- Canned tomatoes
- Provide the main tomato flavour and acidity, strained to a smooth texture.
The step that matters
Adding the tomatoes to the cream mixture. If the tomatoes are added while cold or the cream is too hot, the mixture can curdle or separate. Adding them while hot and stirring steadily helps keep the soup smooth.
Swap the tomato
How well each one fits the dish's main ingredients (flour, butter, milk, pepper):
- Potatofits better
- Capsicumfits better
- Chivefits better
- Tomatothe original
Fit is the average pairing score against flour, butter, milk, pepper. 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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