Why it works: Potato and onion match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 9,019 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
Ingredients
Contains: egg, milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare the filling
Pre-heat oven to 220C / 425F / Gas 7.
Place the potato, onion and meat in a basin and mix well.
Make the pastry
Place the flour in a bowl.
Add the butter and lard, rub in until the mixture resembles fine breadcrumbs.
Add about 2 tablespoons of water and mix to form a firm dough.
Turn out onto a floured surface and knead lightly.
Shape and bake
Divide the pastry into 4.
Roll out each piece to about 15-18 cm (6-7 inches).
Trim by cutting round the edge of a small plate.
Divide the filling between each round.
Brush the edges with water and draw up the pastry on each pasty, in a line over the centre of the filling.
Seal well.
Flute the edge with your fingers.
Place the pasties on a baking sheet, fluted edges uppermost.
Brush each with a little beaten egg or milk.
Bake for 40-45 minutes, until golden brown.
Serve hot or cold.
This recipe comes from the Recipes Wiki on Fandom and is licensed CC BY-SA 4.0. Our formatting and summaries are shared under the same licence.
Steps grouped into stages for easier reading; the method is the source's own.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Potato + oniontop 2% of all pairsAroma overlapstrongMentioned together9,019 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + beeftop 3% of all pairsAroma overlapmoderateMentioned together17,091 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + beeftop 3% of all pairsAroma overlapstrongMentioned together2,051 recipes
Shared aroma: sotolon (curry, maple).
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Potato + buttertop 6% of all pairsAroma overlapstrongMentioned together6,445 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 6% of all pairsAroma overlaplowMentioned together122,858 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter share little aroma chemistry, yet 122,858 recipes mention both: they likely work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Plain flour
- Forms the gluten network that gives the pastry its structure and sturdy walls.
- Butter and lard
- Rubbed into the flour, they coat the flour and create a short, flaky, tender pastry.
- Blade of beef or rump steak
- Provides the savoury meat filling that cooks through inside the sealed pastry.
- Potato
- Adds body and moisture to the filling and makes the pasty substantial.
- Beaten egg or milk
- Brushed on top, it promotes even browning and a glossy golden finish.
The step that matters
Sealing and fluting the edges. If the seal is weak, juices and steam escape during baking and the filling can leak out. A firm, well-crimped seam keeps the filling moist and contained.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (potato, beef, flour, butter, egg):
- Chiveabout as good a flavor fit
- Asparagusabout as good a flavor fit
- Leekabout as good a flavor fit
- Onionthe original
Fit is the average pairing score against potato, beef, flour, butter, egg. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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