Why it works: Potato and onion 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 ↓
Pasties, Cornish
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the dough
In a bowl, combine flour and a pinch of salt.
Rub in the fat until the mixture resembles breadcrumbs.
Add baking powder and mix to a stiff dough with water.
Knead lightly, then divide into six pieces and roll into rounds.
Make the filling
In a separate bowl, mix the chopped meat, potato, onion, pepper, and salt.
Assemble and bake
Place some filling on each pastry round, moisten the edges, and pinch to seal.
Bake in a preheated oven at 400°F (200°C) for 45 minutes.
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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Potato + oniontop 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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Meat + potatotop 14% of all pairsSmell alikemoderateCooked together786 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Forms the dough's structure once mixed with water and fat.
- Fat
- Rubbed into the flour to tenderise the pastry and keep it flaky.
- Baking powder
- Releases gas in the dough, helping it rise and lighten during baking.
- Meat
- Forms the main filling, providing savoury flavour and richness.
- Potato
- Adds moisture and body to the filling as it cooks.
The step that matters
Rubbing in the fat. If the fat is overworked or too warm, it blends fully into the flour and the pastry turns tough instead of short and flaky. Stop once the mixture resembles breadcrumbs.
Swap the onion
How well each one fits the dish's main ingredients (meat, potato, pepper, flour):
- Spinachfits better
- Capsicumfits better
- Okrafits better
- Onionthe original
Fit is the average pairing score against meat, potato, pepper, flour. 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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