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 ↓
Beef Scallop
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the potatoes
Peel and dice the potatoes, then soak them in cold water for 30 minutes.
Drain the potatoes and cover them with boiling salted water; stew gently for 10 minutes.
Make the filling
Drain the water, add the gravy and chopped beef, and cook slowly for 10 minutes.
Transfer to a bowl and mix in the eggs, onion, salt, pepper, and mustard.
Bake and serve
Pour the mixture into a greased bake-dish, sprinkle breadcrumbs on top, and bake covered at 350°F (175°C) for 30 minutes, then uncover to brown.
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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Mustard + oniontop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + mustardtop 7% of all pairsSmell alikemoderateCooked together1,340 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + potatotop 8% of all pairsSmell alikemoderateCooked together2,052 recipes
Shared aroma: sotolon (curry, maple).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Roast beef
- Provides the main savoury body and meaty flavour of the casserole.
- Potatoes
- Add starch and bulk, giving the casserole a soft, tender texture.
- Eggs
- Bind the mixture together and help it set as it bakes.
- Gravy or stock
- Adds moisture and savoury flavour so the filling stays juicy.
The step that matters
Bake covered, then uncover to brown. Baking covered first traps steam so the filling heats through and the eggs set gently. Uncovering at the end lets the breadcrumb topping dry and brown through the Maillard reaction.
Swap the mustard
How well each one fits the dish's main ingredients (beef, potato, egg, pepper, onion):
- Chivefits better
- Capsicumfits better
- Asparagusfits better
- Mustardthe original
Fit is the average pairing score against beef, potato, egg, pepper, onion. 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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