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 ↓
Irish Stew with Oysters
Ingredients
Directions
Prepare
Cut the mutton into neat pieces.
Peel and slice the potatoes.
Shred the onion.
Cook
In a pot, layer potatoes, mutton, onion, and seasonings, repeating until all ingredients are used.
Pour in the white stock.
Cook gently over low heat for 2 hours, shaking the pot frequently.
Add the oysters and cook for an additional 5 minutes.
Serve
Serve hot in a dish.
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 + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mutton + oystertop 16% of all pairsSmell alikemoderateCooked together317 recipes
Shared aroma: 2-nonenal (fatty, green).
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Mutton + peppertop 16% of all pairsSmell alikelowCooked together5,442 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton
- Provides the rich meat flavour and tender texture after slow, gentle cooking.
- Potatoes
- Absorb the stock and thicken the stew as their starch softens.
- Oysters
- Add a briny, savoury flavour that blends into the rich stock.
- White stock
- Supplies the liquid that cooks the layers and forms the base of the stew.
- Onion
- Adds aromatic sweetness that mellows during the long cooking.
The step that matters
Add the oysters and cook for an additional 5 minutes. Oysters are delicate and overcook quickly, becoming rubbery and shrinking. Adding them near the end, after the long gentle simmer, keeps them tender and plump.
Swap the onion
How well each one fits the dish's main ingredients (mutton, oyster, potato, pepper):
- Asparagusfits about as well
- Capsicumfits about as well
- Tomatofits about as well
- Onionthe original
Fit is the average pairing score against mutton, oyster, potato, 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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