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 ↓
Tomato Bisque
Ingredients
Directions
Prepare the tomatoes
Stew the tomatoes and strain them.
Add the baking soda to reduce acidity.
Make the bisque
In a double boiler, heat the milk until scalding hot.
Mix the cornstarch with a little cold milk, then add it to the hot milk.
Cook for five minutes, then stir in the butter, salt, and pepper.
Combine everything and bring to a boil.
Serve
Serve very hot with bread cut into dice and browned in the oven.
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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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Tomato + buttertop 22% of all pairsSmell alikemoderateCooked together6,918 recipes
Shared aroma: 3-hexenal (apple, fruity).
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 flavor of the soup once stewed and strained.
- Baking soda
- Neutralizes some of the tomatoes' acidity, making the soup taste less sharp.
- Cornstarch
- Thickens the milk as its starch swells and sets when heated.
- Butter
- Adds fat for richness and a smoother, silkier mouthfeel.
- Milk
- Forms the creamy liquid base that gives the bisque its body.
The step that matters
Mixing the cornstarch with cold milk before adding it. Starch clumps when it meets hot liquid directly. Mixing it into a little cold milk first disperses the granules so the hot milk thickens smoothly without lumps.
Swap the tomato
How well each one fits the dish's main ingredients (butter, milk, pepper):
- Potatofits better
- Capsicumfits better
- Tomatothe original
- Asparagusfits about as well
Fit is the average pairing score against 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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