Why it works: Onion and potato 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
Ingredients
Directions
Prepare the mutton
Cut the mutton into 8-10 chops, trimming excess fat and bone.
Season the chops with pepper and salt.
Place the chops in a deep saucepan and cover with water.
Simmer and finish
Add the onions, cover, and simmer gently for 30 minutes.
Remove from heat, pour the liquid into a basin, and skim off the grease.
Return the skimmed liquid to the chops, add the potatoes and stock or water.
Bring to a gentle boil and cook for 45 minutes, ensuring it doesn't dry out.
Carefully remove the potatoes to a plate, arrange the chops around them, and pour the gravy and onions over the dish. Serve hot.
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.
Photo for illustrative purposes only · Contact us to use it
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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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + potatotop 9% of all pairsSmell alikemoderateCooked together8,305 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).
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Mutton + meattop 14% of all pairsSmell alikemoderateCooked together936 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Meat + potatotop 14% of all pairsSmell alikemoderateCooked together786 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton
- Provides the meat and rich fat that flavour the stew as it simmers.
- Onions
- Soften during simmering and add sweetness that rounds out the broth.
- Potatoes
- Thicken the gravy as their starch breaks down and absorb the meat flavour.
- Stock
- Adds savoury depth to the cooking liquid that becomes the gravy.
The step that matters
Skimming the grease. Fat rises to the surface of the simmering liquid, and removing it before returning the liquid to the stew keeps the gravy clean-tasting and less greasy.
Swap the onion
How well each one fits the dish's main ingredients (mutton, pepper, meat, potato):
- Capsicumfits about as well
- Carrotfits about as well
- Asparagusfits about as well
- Onionthe original
Fit is the average pairing score against mutton, pepper, meat, potato. 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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