Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
To Boil Green Peas
Ingredients
Directions
Prepare
Wash and drain the peas in a colander.
Boil plenty of salted water in a saucepan.
Add the peas and boil rapidly until tender, about 15 to 25 minutes.
Drain the peas and serve hot with melted butter.
Make French style peas
For French style, mix peas with butter in a bowl until coated.
Transfer to a saucepan without water and cook over gentle heat for 20 minutes, stirring occasionally.
Add boiling water to just cover the peas and a small amount of salt.
Boil quickly for 40 minutes, then stir in a sugar lump dipped in water and a smooth mixture of butter and flour.
Shake over the fire for a couple of minutes and serve heaped in a hot dish.
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 + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Peas + buttertop 16% of all pairsSmell alikemoderateCooked together4,887 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Peas + flourtop 21% of all pairsSmell alikelowCooked together2,837 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
- Green peas
- Form the main body of the dish, becoming tender and sweet when cooked.
- Butter
- Adds richness and a silky coating that carries flavour through the peas.
- Flour
- Thickens the butter and cooking liquid into a smooth, lightly bound sauce.
- Sugar
- Adds a touch of sweetness that balances the savoury butter and salt.
The step that matters
Boil quickly for 40 minutes, then stir in the butter and flour mixture. Flour must be blended smoothly into butter before stirring in, or it forms lumps. Stirring it in while the liquid is hot lets it thicken evenly into a sauce rather than clumping.
Swap the peas
How well each one fits the dish's main ingredients (butter, flour, sugar):
- Almondfits better
- Macadamia nutfits better
- Chestnutfits better
- Peasthe original
Fit is the average pairing score against butter, flour, sugar. 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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