Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Green Peas
Ingredients
Directions
Prepare
Wash and drain the green peas thoroughly.
In a stewpan, melt the fresh butter and add the peas, parsley, and green onions.
Toss the peas in the butter, then sprinkle with flour.
Cook
Add boiling water to just cover the peas and let boil for 15 minutes until the sauce is reduced.
Season with salt and pepper, then remove from heat.
Add the walnut-sized butter and sugar, tossing gently until melted.
Serve
Warm the serving dish and serve immediately.
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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Parsley + walnuttop 7% of all pairsSmell alikestrongCooked together865 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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 and absorb the buttery sauce as it cooks.
- Fresh butter
- Provides fat and richness, carrying the flavour of the peas and herbs.
- All-purpose flour
- Dusted over the coated peas, it thickens the cooking liquid into a light sauce.
- Sugar
- Adds sweetness that balances the savoury butter and pepper.
- Green onions
- Contribute a mild, fresh onion aroma to the buttery sauce.
The step that matters
Reducing the sauce after boiling. Boiling just enough water to cover the peas and reducing it lets the flour thicken the liquid into a sauce rather than a watery broth. Stopping too early leaves the peas swimming in thin liquid, while over-reducing can make the sauce stick and scorch.
Swap the peas
How well each one fits the dish's main ingredients (butter, parsley, onion, flour, pepper, walnut, sugar):
- Cashew nutfits better
- Pistachiofits better
- Chickpeafits better
- Peasthe original
Fit is the average pairing score against butter, parsley, onion, flour, pepper, walnut, 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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