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 ↓
Clam Soup
Ingredients
Directions
Make the clam broth
Put 30 clams in a pot with 4 quarts of water and boil for 2 hours.
Remove the clams, chop them finely, and return them to the pot.
Add a little mace and 12 whole peppercorns, then boil for 1 hour longer.
Thicken and serve
In a bowl, rub together a small piece of butter with 2 tablespoons of flour.
Stir this mixture into 1 pint of boiling milk.
After the clam soup has boiled for 3 hours, pour it into a tureen and stir in the thickened milk.
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.
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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Clam + buttertop 11% of all pairsSmell alikemoderateCooked together840 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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Mace + milktop 17% of all pairsSmell alikelowCooked together3,346 recipes
Shared aroma: sabinene (woody, terpenic).
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
- Clams
- Provide the main flavor and body of the soup as they simmer and release their juices into the water.
- Flour
- Thickens the milk when rubbed with butter and stirred in, giving the soup a slightly creamy body.
- Milk
- Adds creaminess and mild sweetness, becoming a richer base once the thickened milk is stirred in.
- Butter
- Carries the flour so it blends smoothly and adds richness to the thickened milk.
The step that matters
Stirring the flour-butter mixture into boiling milk. Flour clumps if added raw to liquid. Rubbing it with butter first coats the starch so it disperses, and stirring it into hot milk lets the starch swell evenly and thicken the soup smoothly.
Swap the mace
How well each one fits the dish's main ingredients (clam, butter, flour, milk):
- Nutmegfits better
- Cinnamonfits better
- Jalapenofits better
- Macethe original
Fit is the average pairing score against clam, butter, flour, milk. 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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