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 ↓
Beefsteak Pie
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the filling
In a frying pan, melt the butter over medium heat.
Add the diced steak, ham, and chopped onions; simmer for 15 minutes.
Stir in the sliced potatoes, stock, salt, pepper, and flour. Cook for an additional 20 minutes.
Bake
Pour the mixture into a baking dish lined with pastry.
Cover and bake at 350°F (175°C) until done.
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).
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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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + potatotop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they 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
- Steak
- Provides the main meat and savory flavor of the filling.
- Flour
- Thickens the stock and sauce so the filling holds together.
- Potatoes
- Add bulk and body to the filling as they soften in the stock.
- Onions
- Add sweetness and savory depth as they cook down in the butter.
- Butter
- Adds fat and richness to the initial cooking of the onions and meat.
The step that matters
Thickening the filling before baking. Flour needs to be cooked in the liquid long enough to thicken and lose its raw taste. Because the filling is covered in pastry, it cannot be checked or stirred during baking, so the simmering stage matters.
Swap the onion
How well each one fits the dish's main ingredients (ham, butter, potato, pepper, flour):
- Chivefits about as well
- Asparagusfits about as well
- Leekfits about as well
- Onionthe original
Fit is the average pairing score against ham, butter, 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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