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 ↓
Potato 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 the filling
Combine sliced potatoes and onions with water in a pot.
Stew until nearly done.
Transfer mixture to a pie dish.
Season with herbs, pepper, and salt.
Add soaked tapioca and butter, mixing gently.
Make the crust and bake
Mix flour with butter or frying oil and enough milk to form a dough.
Roll out the dough and cover the pie filling.
Bake at 400°F (200°C) for 1 hour.
Serve with green vegetables.
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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Wheat + milktop 6% of all pairsSmell alikemoderateCooked together2,418 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Potato + wheattop 7% of all pairsSmell alikestrongCooked together235 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 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
- Potatoes
- Form the bulk of the filling and set into a soft, starchy body as they cook.
- Soaked tapioca
- Thickens the juices in the filling so it sets rather than running out.
- Whole wheat flour
- Forms the structure of the dough that encloses the filling.
- Butter
- Adds fat for richness and a tender texture in both filling and dough.
- Onion
- Adds savoury aroma and sweetness as it softens during stewing.
The step that matters
Stew until nearly done. Potatoes must be partly cooked before baking, because the oven only has a short time to finish them. Stopping at the right point keeps them tender rather than raw or mushy.
Swap the onion
How well each one fits the dish's main ingredients (potato, pepper, butter, wheat, flour, milk):
- Capsicumfits better
- Chivefits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against potato, pepper, butter, wheat, flour, milk. 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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