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 ↓
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
Cut the meat and stew it with the onions in the meat's jelly.
Boil or steam the potatoes, then mash them.
Grease a baking dish and line the sides with some of the mashed potatoes.
Assemble and bake
Place the stewed meat and onions in the center, then season with salt and pepper.
Cover with the remaining mashed potatoes and bake at 400°F (200°C) until the top is brown.
After baking, pour in about 2 pints of gravy made from the onion cooking liquid.
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.
-
Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Meat + potatotop 14% of all pairsSmell alikemoderateCooked together786 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Meat + oniontop 17% of all pairsSmell alikelowCooked together6,364 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
- Meat
- Forms the savory filling, becoming tender through slow stewing in its own jelly.
- Potatoes
- Form the mashed crust that encloses the filling and browns on top in the oven.
- Onions
- Add sweetness and aroma to the stewed filling and to the cooking liquid used for gravy.
- Gravy
- Adds moisture to the finished pie, made from the onion cooking liquid.
The step that matters
Browning the top crust. The top should be baked until brown, which depends on oven heat and the moisture in the mashed potatoes. Underbaking leaves it pale and soft, while overbaking can dry it out.
Swap the onion
How well each one fits the dish's main ingredients (meat, potato, pepper):
- Capsicumfits better
- Carrotfits better
- Asparagusfits about as well
- Onionthe original
Fit is the average pairing score against meat, 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.
More potato pie recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Potato Croquettes255 recipes
Potato Rolls78 recipes
Potato Chips53 recipes
Sweet Potato Croquettes53 recipes