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 ↓
Green Peas a LA Franqaise, or French Fashion
Ingredients
Directions
Prepare the peas
Place the peas in a pot of spring water with 2 ounces of butter and mix until the butter coats the peas.
Drain the peas in a colander and transfer them to a thick saucepan without any water.
Cook
Cook over gentle heat, stirring occasionally for 20 minutes until they begin to simmer.
Add boiling water to just cover the peas and a pinch of salt, then boil quickly for 40 minutes.
Mix in a small lump of sugar dipped in water and a smooth mixture of ½ ounce of butter and 1 teaspoon of flour.
Shake over the heat for 2 minutes.
Serve immediately 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.
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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Sugar + flourtop 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).
-
Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
-
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
- Peas
- Form the main body of the dish, becoming tender as they cook slowly in butter and water.
- Butter
- Adds richness and coats the peas, carrying flavour through the gentle cooking.
- Flour
- Blended with butter, it thickens the cooking liquid into a light, smooth sauce.
- Sugar
- Adds a touch of sweetness that balances the savoury peas.
The step that matters
Adding the butter and flour mixture. Flour lumps easily if added dry or too hot. Smoothing it into butter first lets it disperse evenly, so the liquid thickens without clumps.
Swap the peas
How well each one fits the dish's main ingredients (butter, sugar, flour):
- Almondfits better
- Macadamia nutfits better
- Chestnutfits better
- Peasthe original
Fit is the average pairing score against butter, sugar, flour. 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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