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 ↓
Ieish Stew
Ingredients
Directions
Layer and season
Layer half of the potatoes at the bottom of a stewpan.
Add a couple of chops and some sliced onions on top.
Repeat the layers until the pan is full.
Sprinkle with white pepper and salt.
Pour in the broth or gravy and mushroom ketchup.
Stew
Cover tightly to prevent steam from escaping.
Stew on a very low heat for 1½ hours.
Add a small slice of ham for extra flavor, if desired.
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 + mushroomtop 9% of all pairsSmell alikestrongCooked together968 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Onion + mushroomtop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mutton + mushroomtop 13% of all pairsSmell alikemoderateCooked together685 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Mutton + hamtop 14% of all pairsSmell alikemoderateCooked together430 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton chops
- Provide the meat, whose fat and collagen flavor the broth as the stew cooks slowly.
- Potatoes
- Break down slightly as they simmer, thickening the stew and adding body.
- Onions
- Soften and turn sweet during long, gentle cooking, adding depth to the broth.
- Broth or gravy
- Supplies the cooking liquid that moistens the layers and carries savory flavor.
- Mushroom ketchup
- Adds concentrated savory, umami flavor to the broth.
The step that matters
Cover tightly and keep the heat very low. A tight lid traps steam so the liquid stays in the pan and the meat cooks gently. High heat would toughen the meat and could scorch the bottom layers before the stew is done.
Swap the white pepper
How well each one fits the dish's main ingredients (mutton, potato, onion, mushroom, ketchup, ham):
- Garlicfits better
- Thymefits better
- Celeryfits better
- White pepperthe original
Fit is the average pairing score against mutton, potato, onion, mushroom, ketchup, ham. 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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