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 ↓
Carrot Soup
Ingredients
Directions
Prepare the carrots
Slice and boil the carrots until tender.
Press the carrots through a vegetable ricer.
Make the soup
Make a roux by cooking the butter and flour together.
Pour the roux over the carrot pulp and hot milk.
Add the sweet cream and mix well.
Serve
Serve in cups topped with a spoonful of whipped cream and sprinkle with cayenne or paprika.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Carrot + flourtop 13% of all pairsSmell alikemoderateCooked together8,029 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour 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
- Carrots
- Form the main body and sweet flavour of the soup once boiled and pressed to a pulp.
- Milk
- Adds liquid and creaminess, thinning the carrot pulp into a smooth soup.
- Butter
- Fat that combines with flour to make the roux, enriching flavour and texture.
- Flour
- Thickens the soup when cooked with butter into a roux.
- Sweet cream
- Adds richness and fat, giving the soup a smoother, silkier body.
The step that matters
Making the roux. Flour must be cooked with butter until blended and smooth before adding liquid. Cooking removes raw flour taste and lets starch thicken evenly, so the soup avoids lumps and a pasty flavour.
Swap the carrot
How well each one fits the dish's main ingredients (milk, butter, flour, cream):
- Potatofits better
- Leekfits better
- Arrowrootfits better
- Carrotthe original
Fit is the average pairing score against milk, butter, flour, cream. 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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