Why it works: Lentils and onion match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 1,221 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Baked Lentils
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Pick over and wash the lentils, then soak them in water overnight.
Drain the lentils and place them in a pot with 2 quarts of cold water; heat slowly.
As the water boils, the lentils will rise to the top; remove them with a skimmer and place in a deep baking dish with the pork and onion in the center.
Bake
Mix the salt and pepper with 1 quart of boiling water and pour it over the lentils.
Cook slowly in a moderate oven at 350°F (175°C) for 4 to 5 hours, adding a little water as needed.
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 + oniontop 8% of all pairsSmell alikestrongCooked together1,221 recipes
Shared aroma: coumarin (sweet, hay).
-
Pork + oniontop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Lentils + peppertop 13% of all pairsSmell alikemoderateCooked together812 recipes
Shared aroma: coumarin (sweet, hay).
-
Pepper + porktop 16% of all pairsSmell alikemoderateCooked together22,121 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 bulk of the dish and set into a tender, spoonable texture during long baking.
- Salt pork
- Adds fat and savory flavor that seeps into the lentils as they bake.
- Onion
- Adds aromatic sweetness and savory depth as it cooks slowly with the lentils.
The step that matters
Adding the lentils to the boiling water stage. Lentils must be skimmed off as they rise, so they are not overcooked before baking; the slow, long bake then softens them evenly without breaking them down.
Swap the lentils
How well each one fits the dish's main ingredients (pepper, pork, onion):
- Sesamefits better
- Black-eyed peafits better
- Beansfits better
- Lentilsthe original
Fit is the average pairing score against pepper, pork, onion. 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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