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
Layer the meat
Place the rump steak in a large stewpan and cover it with sliced Spanish onion.
Sprinkle the steak with coarse sea salt, then add the mutton cutlet or chops on top.
Cover the mutton with another layer of onions, sprinkle with salt, black peppercorns, and the clove.
Stew and finish
Barely cover with water and stew gently for 2 hours.
Meanwhile, peel the potatoes and boil them in a saucepan for 10 minutes.
Remove the potatoes and place them on top of the stew for the last part of cooking.
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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Onion + clovetop 13% of all pairsSmell alikemoderateCooked together16,901 recipes
Shared aroma: 2-nonanone (fruity, floral).
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Clove + potatotop 14% of all pairsSmell alikemoderateCooked together1,297 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Onion + muttontop 18% of all pairsSmell alikelowCooked together4,531 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mutton + potatotop 19% of all pairsSmell alikemoderateCooked together293 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rump steak
- Provides beef flavor and tender, savory meat that enriches the stew's broth as it cooks.
- Mutton
- Contributes rich, savory flavor and fat that melts into the slow-cooked broth.
- Spanish onion
- Adds sweetness and aromatic depth as it softens and breaks down into the stew.
- Mealy potatoes
- Their starch breaks down easily, thickening the stew and giving a soft, fluffy texture.
The step that matters
Barely cover with water and stew gently. Gentle, low simmering keeps the meat tender and prevents toughening from proteins tightening under hard boiling. Too much water dilutes the broth.
Swap the clove
How well each one fits the dish's main ingredients (onion, mutton, potato):
- Garlicfits better
- Cuminfits better
- Thymefits better
- Clovethe original
Fit is the average pairing score against onion, mutton, 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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