Why it works: Milk and butter 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 ↓
Mock Bisque Soup
Ingredients
Directions
Prepare the tomatoes
Stew the tomatoes until soft enough to strain easily.
If the tomatoes are very acid, add the baking soda before straining.
Make the soup
Boil the milk in a double boiler.
In a small saucepan, cook 1 tablespoon of butter and cornstarch together, adding enough hot milk to make it pour easily.
Stir the mixture carefully into the boiling milk and boil for ten minutes.
Add the remaining butter in small pieces and stir until well mixed.
Add the salt, pepper, and strained tomatoes.
Serve very hot.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Tomato + milktop 15% of all pairsSmell alikemoderateCooked together2,226 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Tomato + buttertop 22% of all pairsSmell alikemoderateCooked together6,918 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + white peppertop 28% of all pairsSmell alikelowCooked together3,814 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Tomato + white peppertop 29% of all pairsSmell alikelowCooked together226 recipes
Shared aroma: methyl butyrate (fruity, apple).
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 and flavour of the soup once stewed and strained.
- Milk
- Forms the creamy base of the soup.
- Butter
- Adds richness and a smooth, silky mouthfeel.
- Cornstarch
- Thickens the milk so the soup becomes smooth and body-rich.
- Baking soda
- Neutralises acidity in very acidic tomatoes, softening the flavour.
The step that matters
Adding the cornstarch mixture to the milk. Cornstarch thickens only when it is heated and stirred, and it can clump if added to hot liquid without first being mixed with butter and warm milk. Stirring the mixture in carefully and keeping the milk boiling lets the starch swell evenly into a smooth, thickened base.
Swap the tomato
The recipe marks tomato as optional. How well each one fits the dish's main ingredients (milk, butter, white pepper):
- Potatofits better
- Capsicumfits better
- Asparagusfits better
- Tomatothe original
Fit is the average pairing score against milk, butter, white 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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