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 or Veal Pie
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Trim the mutton, removing excess fat, and cut into chops.
Season the chops with coarse sea salt.
Assemble and bake
Place the chops in a pie dish with a little water and mushroom ketchup.
Add chopped onion and potatoes if desired.
Cover with pie crust and bake at 400°F (200°C) until golden 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).
-
Mushroom + potatotop 9% of all pairsSmell alikestrongCooked together968 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Mushroom + oniontop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mutton + mushroomtop 13% of all pairsSmell alikemoderateCooked together685 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Mushroom + ketchuptop 16% of all pairsSmell alikelowCooked together2,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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 that forms the filling, releasing juices as it cooks.
- Mushroom ketchup
- Adds savoury depth and umami flavour to the meat and its cooking liquid.
- Pie crust
- Encloses the filling and browns in the oven to form a golden top.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (mutton, mushroom, ketchup, potato):
- Shallotfits about as well
- Capsicumfits about as well
- Onionthe original
- Tomatofits about as well
Fit is the average pairing score against mutton, mushroom, ketchup, 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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