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 ↓
Puree of Peas
Ingredients
Directions
Prepare the peas
Drain peas and add cold water and sugar; cook until tender, about 20 minutes.
Rub peas through a puree strainer.
Make the puree
In a saucepan, thicken the pulp with butter and flour cooked together, being careful not to scorch.
Scald the milk with the onion, then remove the onion and add the milk to the pea mixture.
Season with salt and white pepper.
Add the hot cream and whisk until thoroughly blended.
If not served immediately, keep hot over hot water.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Peas + oniontop 13% of all pairsSmell alikemoderateCooked together5,460 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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
- Marrowfat peas
- Form the main body and flavour of the puree once cooked and strained.
- Butter
- Adds richness and fat, and cooks with flour to help thicken the pulp.
- Flour
- Thickens the pea pulp when cooked together with butter into a roux.
- Milk
- Adds moisture and softness, loosening the puree to a smooth, creamy texture.
- Hot cream
- Adds fat and richness, giving the finished puree a smooth, velvety mouthfeel.
The step that matters
Cooking the butter and flour thickener. Flour must be cooked with the butter long enough to lose its raw taste and thicken properly, while staying off high heat so it does not scorch on the pan base, which would give a burnt flavour and dark specks.
Swap the white pepper
How well each one fits the dish's main ingredients (peas, butter, sugar, flour, milk, onion, cream):
- Cinnamonfits better
- Nutmegfits better
- Garlicfits better
- White pepperthe original
Fit is the average pairing score against peas, butter, sugar, flour, milk, onion, 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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