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 ↓
Mashed Beans
Ingredients
Directions
Prepare the beans
Pick over and wash the beans, then soak them overnight.
Cook the beans in water until tender.
Drain and mash the beans.
Season and serve
Add salt, pepper, and chopped parsley to the mashed beans.
Brown the chopped onion in the fat and add it to the mashed beans.
Heat the mixture and serve.
Alternatively, cool the mashed beans, add raw onion, and serve with French dressing as a salad.
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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Beans + oniontop 7% of all pairsSmell alikestrongCooked together5,242 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beans + parsleytop 8% of all pairsSmell alikestrongCooked together1,376 recipes
Shared aroma: linalool (floral, citrus).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Beans + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Dried beans
- Form the mashed base; cooking softens them so they can be mashed smooth.
- Fat
- Carries the onion's flavour and adds richness to the mashed beans.
- Onion
- Adds aroma and savoury flavour when browned in the fat.
The step that matters
Cook the beans until tender. Beans must be fully softened before mashing; undercooked beans stay firm and grainy, and starch only becomes smooth and mashable once cooked through.
Swap the onion
How well each one fits the dish's main ingredients (beans, parsley, pepper):
- Carrotfits better
- Okrafits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against beans, parsley, pepper. 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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