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 ↓
Vegetable Marrow Soup
Ingredients
Directions
Prepare
Cut the vegetable marrow into pieces and chop finely.
Melt the butter in a soup pot.
Add the chopped marrow.
Make the soup
Sprinkle the flour over the mixture and stir until it thickens.
Pour in the stock and milk, then add the pepper.
Cook slowly on the back of the stove for one hour.
Remove from heat and add salt.
Strain the soup into a tureen.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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
- Vegetable marrow
- Forms the body of the soup and gives it its main vegetable flavour and bulk.
- Flour
- Thickens the soup as its starch swells in the hot liquid.
- Butter
- Adds fat and richness, helping the marrow soften and carry flavour.
- Milk
- Adds creaminess and a soft, rounded body to the soup.
The step that matters
Stirring in the flour. Flour must be cooked into the melted butter and marrow and stirred until the mixture thickens. Adding liquid too early can leave lumps, because starch granules clump before they can disperse evenly in the liquid.
“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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