Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Lamb Stew
Ingredients
Directions
Prepare the stew
Brown the sliced onion in a little fat in a saucepan.
Add the lamb pieces, sprinkle with salt and pepper, and cover with boiling water.
Bring to a boil, then let it simmer for 2 hours or cook over hot water for 3 hours until the meat is tender.
After 1 hour of simmering, add the rice.
Half an hour before serving, add the parboiled potatoes.
Finish and serve
Once the potatoes are done, remove any bones and fat, stir in the tomato or ketchup, and adjust seasoning if needed before serving.
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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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + tomatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Rice + tomatotop 6% of all pairsSmell alikestrongCooked together3,065 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Potato + ricetop 7% of all pairsSmell alikestrongCooked together851 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 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
- Lamb
- Becomes tender through long simmering, giving the stew its main meat and body.
- Potatoes
- Hold their shape when parboiled and add starch that thickens the stew slightly.
- Rice
- Absorbs liquid and releases starch, helping thicken the broth.
- Onion
- Browned first in fat to build a sweeter, deeper savory base.
- Tomato or tomato ketchup
- Adds acidity and a tangy flavor that brightens the rich lamb.
The step that matters
Simmering the lamb until tender. Lamb shoulder-type cuts contain connective tissue that only breaks down into gelatin with long, gentle simmering. Boiling hard or stopping early leaves the meat tough, so keep the liquid at a gentle simmer for the full time.
Swap the onion
How well each one fits the dish's main ingredients (lamb, potato, rice, tomato, pepper):
- Capsicumfits better
- Okrafits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against lamb, potato, rice, tomato, 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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