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 ↓
Mutton Hot-pot
Ingredients
Directions
Prepare
Parboil the onions and potatoes, then slice them.
Grease a deep baking dish and line it with the sliced potatoes.
Assemble and bake
Add a layer of onions, then the mutton cut into small pieces, seasoning with salt and pepper.
Add another layer of onions and fill up with more potatoes.
Pour in 1 pint of gravy or stock, cover with a lid or old dish, and bake for 2 hours.
Remove the cover, drizzle dripping over the potatoes, and return to the oven to brown.
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).
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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 + peppertop 16% of all pairsSmell alikelowCooked together5,442 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Mutton + oniontop 18% of all pairsSmell alikelowCooked together4,531 recipes
Shared aroma: 2,4-decadienal (seaweed).
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 flavour that the broth and vegetables take on during the long bake.
- Potatoes
- Form the layered topping that softens in the liquid and browns on top.
- Onions
- Add sweetness and moisture as they soften between the meat and potato layers.
- Dripping
- Adds fat that helps the exposed potatoes crisp and brown at the end.
The step that matters
Return the uncovered dish to the oven to brown. Removing the lid lets surface moisture evaporate, so the potatoes can take on colour and crispness. Without enough dry heat and fat, the top stays pale and soft.
Swap the onion
How well each one fits the dish's main ingredients (mutton, potato, pepper):
- Carrotfits better
- Capsicumfits better
- Tomatofits about as well
- Onionthe original
Fit is the average pairing score against mutton, 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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