Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Tomato Bisque
Ingredients
Directions
Make the tomato base
Combine 1 can of tomatoes and ½ cup of water in a pot and cook for 15 minutes.
Strain the mixture through a fine sieve into a porcelain or aluminum kettle.
Add the milk and finish
Boil 1½ cups of sweet milk in another vessel.
Mix 2 teaspoons of flour with a little sweet milk to create a smooth paste. Pour the flour mixture and boiling milk into the boiling tomatoes.
Add pepper and coarse sea salt to taste, and boil for 5 minutes.
Serve hot in bouillon cups or soup plates.
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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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Tomato + flourtop 22% of all pairsSmell alikemoderateCooked together7,065 recipes
Shared aroma: isobutyraldehyde (malty, green).
Milk and flour barely smell alike, yet cooks put them together in 78,219 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 and acidic, sweet tomato flavor of the bisque.
- Sweet milk
- Adds richness and creamy body, softening the acidity of the tomatoes.
- Flour
- Thickens the soup as its starch gelatinizes in the hot liquid, giving a smooth texture.
The step that matters
Stirring the flour paste into the boiling tomatoes. Flour mixed with liquid first into a smooth paste, then added to hot liquid, disperses evenly. Lumps form if flour is dumped in dry or added to cool liquid, and the starch then thickens unevenly.
Swap the tomato
How well each one fits the dish's main ingredients (milk, flour, pepper):
- Capsicumfits better
- Arrowrootfits better
- Potatofits better
- Tomatothe original
Fit is the average pairing score against milk, flour, 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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