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 ↓
Cream of Pea Soup
Ingredients
Directions
Make the soup
Heat the milk in a pot.
Add the bay leaf, mace, onion, salt, pepper, and strained peas.
Bring the soup to a boil.
Remove the bay leaf, mace, and onion.
Thicken and finish
Cream together the butter and flour.
Add the mixture to the soup.
Beat with a wire whisk until smooth.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Peas + oniontop 13% of all pairsSmell alikemoderateCooked together5,460 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).
Flour and butter 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
- Peas
- Provide the main body and flavor of the soup.
- Milk
- Forms the creamy liquid base of the soup.
- Flour
- Thickens the soup as it cooks with the butter.
- Butter
- Adds richness and helps the flour blend smoothly into the soup.
The step that matters
Adding the butter and flour mixture. If the flour is added directly or not creamed smooth with the butter, it can form lumps when it hits the hot liquid. Beating with a whisk after adding disperses the starch so the soup thickens evenly.
Swap the mace
How well each one fits the dish's main ingredients (peas, milk, flour, butter, pepper, onion):
- Parsleyfits better
- Thymefits better
- Turmericfits better
- Macethe original
Fit is the average pairing score against peas, milk, flour, butter, pepper, onion. 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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