Why it works: Lentils and flour match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 255 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Lentil Fritters
Ingredients
Directions
Prepare the filling
Boil lentils until soft but not mushy, then drain.
Mince the onion and fry it in butter until browned.
In a bowl, combine lentils, fried onion, pepper, and salt; mix well.
Form and fry
Form the mixture into small cakes and dredge with flour.
If lentils are too soft, mix in breadcrumbs.
Fry the cakes in hot olive oil until golden brown.
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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Lentils + flourtop 5% of all pairsSmell alikestrongCooked together255 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Lentils + oniontop 8% of all pairsSmell alikestrongCooked together1,221 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Lentils + peppertop 13% of all pairsSmell alikemoderateCooked together812 recipes
Shared aroma: coumarin (sweet, hay).
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
- Lentils
- Provide the bulk and structure that hold the cakes together.
- Onion
- Adds sweetness and savory aroma when browned in butter.
- Butter
- Adds fat and flavor for frying the onion until browned.
- Breadcrumbs
- Absorb moisture and help bind the mixture if lentils are too soft.
The step that matters
Fry the cakes in hot olive oil until golden brown. Frying in hot oil browns the surface through the Maillard reaction and seals it, so the cakes turn crisp outside while staying tender inside.
Swap the onion
How well each one fits the dish's main ingredients (lentils, butter, pepper, flour):
- Kalefits better
- Shallotfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against lentils, butter, pepper, 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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