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 ↓
Lentils, Savoury
Ingredients
Directions
Prepare
Soak the lentils in tepid water for about 3 hours, changing the water as it cools.
Melt half the butter in a stewpan and lightly fry the onion.
Add the drained lentils and cover with warm water.
Season with salt and pepper.
Cook
Cook gently for about 2 hours until the lentils are tender.
Remove the lid.
Allow the water to evaporate until the lentils are dry.
Finish and serve
Add the remaining butter, white sauce, and parsley.
Season to taste.
Toss over the fire until thoroughly hot.
Dish up and serve.
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).
-
Lentils + parsleytop 5% of all pairsSmell alikestrongCooked together322 recipes
Shared aroma: coumarin (sweet, hay).
-
Lentils + oniontop 8% of all pairsSmell alikestrongCooked together1,221 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + parsleytop 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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lentils
- Form the main body of the dish, becoming tender through long soaking and gentle cooking.
- Butter
- Adds richness and fat, carrying flavour through the frying and finishing stages.
- White sauce
- Adds moisture and a creamy binding that coats the cooked lentils.
- Onion
- Adds aromatic flavour when lightly fried in butter at the start.
The step that matters
Allow the water to evaporate until the lentils are dry. Lentils left with too much liquid turn soupy once the white sauce is added. Driving off the water lets the lentils absorb the sauce and hold a thick, spoonable texture.
Swap the lentils
How well each one fits the dish's main ingredients (butter, onion, parsley, sauce, pepper):
- Black-eyed peafits better
- Beansfits about as well
- Chickpeafits about as well
- Lentilsthe original
Fit is the average pairing score against butter, onion, parsley, sauce, 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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