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 ↓
Economical Stew
Ingredients
Directions
Prepare
Grease a cooking bag well.
Wash the mutton pieces thoroughly.
Dust the mutton with salted barley flour and a little pepper.
Wash the onions and potatoes well.
Layer the wet onions and potatoes in the bag with the mutton.
Add about ½ pint of water to the bag.
Cook
Place the bag on the grid and cook slowly for 2 hours at 275°F (135°C).
Serve
Serve on a hot dish and stir well 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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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Barley + potatotop 5% of all pairsSmell alikestrongCooked together165 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Pepper + potatotop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Barley + oniontop 10% of all pairsSmell alikemoderateCooked together1,166 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 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
- Mutton
- Provides the meat that turns tender and flavourful during long, slow cooking.
- Salted barley flour
- Coats the meat and thickens the cooking juices into a light gravy.
- Onions
- Soften and release sweetness and aroma into the stew liquid.
- Potatoes
- Add starchy body and soak up the cooking juices.
The step that matters
Cooking slowly at low heat. Mutton is a tough cut with connective tissue. Gentle, low heat over a long time converts collagen to gelatin, keeping the meat tender and moist. High heat toughens and dries the fibres.
Swap the onion
How well each one fits the dish's main ingredients (mutton, barley, flour, pepper, potato):
- Leekfits better
- Turnipfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against mutton, barley, flour, pepper, 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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