Why it works: Milk and flour are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Tomato Bisque
Ingredients
Directions
Prepare
Cook the canned tomatoes in a pot, adding the baking soda.
Thicken the sweet milk with the flour in another pot.
Combine and serve
Bring both mixtures to a boil.
Pour the tomato mixture into a serving tureen 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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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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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
- Canned tomatoes
- Provides the main flavor, acidity, and the body of the soup.
- Sweet milk
- Adds richness and a creamy texture to the soup.
- Baking soda
- Neutralizes the tomatoes' acidity, which helps keep the milk from curdling.
- All-purpose flour
- Thickens the milk as its starch swells with heat.
The step that matters
Bringing both mixtures to a boil. Milk can scorch or separate when overheated, and the acid in tomatoes can curdle it. The baking soda added to the tomatoes reduces that acidity, so the two mixtures are less likely to curdle when combined at a boil.
Swap the tomato
How well each one fits the dish's main ingredients (milk, flour):
- Arrowrootfits better
- Potatofits better
- Sweet potatofits better
- Tomatothe original
Fit is the average pairing score against milk, flour. 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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