Why it works: Tomato and potato match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,798 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Beef 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
Layer thin slices of beef in a pie dish, sprinkling with flour, pepper, and salt.
Add chopped tomato or onion if desired, then repeat layers until the dish is full.
Pour in beef gravy, or add butter and enough water to create gravy.
Make the potato crust
Mash boiled potatoes with cream, butter, and salt until smooth.
Spread the potato mixture over the beef as a crust, about 1 inch thick.
Bake
Brush the top with beaten egg and bake at 400°F (200°C) for about 25 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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Tomato + potatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + tomatotop 8% of all pairsSmell alikemoderateCooked together5,448 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + potatotop 8% of all pairsSmell alikemoderateCooked together2,052 recipes
Shared aroma: sotolon (curry, maple).
-
Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef
- Forms the savory main filling that the crust covers and holds together while baking.
- Flour
- Coats the beef slices and thickens the gravy so the filling becomes saucy rather than watery.
- Potatoes
- Mashed into a soft, smooth layer that forms the crust over the filling.
- Cream or milk
- Adds moisture and richness so the mashed potato topping stays smooth and spreadable.
- Butter
- Adds fat and richness to the mashed potato crust and helps the top brown.
- Egg
- Brushed on top, it helps the crust take on a golden browned color.
The step that matters
Spreading the potato crust evenly over the filling. Potato mash that is too thin or too lumpy can sink into the filling or bake unevenly. Smooth mashing and an even layer of about 1 inch help the topping seal the filling and brown consistently.
Swap the tomato
The recipe marks tomato as optional. How well each one fits the dish's main ingredients (beef, flour, pepper, potato, cream, butter, egg):
- Chivefits better
- Leekfits better
- Asparagusfits better
- Tomatothe original
Fit is the average pairing score against beef, flour, pepper, potato, cream, butter, egg. 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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