Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 34,118 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
The recipe
6 servingsIngredients
Contains: egg, milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.
Melt 2 tablespoons butter in a large skillet over medium heat. Add the chopped onions and cook for 6 minutes, stirring, until soft.
Add the ground lamb, breaking it up, and cook for 10 minutes until no pink remains and it reaches 160°F (71°C). Drain excess fat.
Stir in the whole peeled tomatoes, crushing them with a spoon, along with the Italian seasoning, salt and pepper. Simmer uncovered for 30 minutes, stirring occasionally, until thick. Stir in the parsley.
While the sauce simmers, place the sliced potatoes in a pot, cover with boiling water and cook for 8 minutes until just tender. Drain well.
Preheat the oven to 350°F (175°C).
Melt the second 2 tablespoons butter in a saucepan over medium heat. Whisk in the flour and cook for 1 minute. Gradually whisk in the milk and simmer 5 minutes until thickened.
Reduce the heat to low. Stir in the cheddar until melted. Whisk a spoonful of the hot sauce into the beaten egg, then stir the egg back into the sauce and heat until it reaches 160°F (71°C). Do not boil.
Layer half the potatoes in a 9x13 inch baking dish, spread the lamb sauce over them, then add the remaining potatoes. Pour the cheese sauce evenly on top.
Bake for 50 minutes until golden and bubbling. Let rest for 10 minutes before cutting.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Parsley + peppertop 2% of all pairsAroma overlapstrongMentioned together34,118 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + milktop 3% of all pairsAroma overlapstrongMentioned together81,222 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Tomato + peppertop 4% of all pairsAroma overlapstrongMentioned together17,913 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + tomatotop 4% of all pairsAroma overlapstrongMentioned together20,622 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Parsley + tomatotop 5% of all pairsAroma overlapstrongMentioned together5,396 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (butter, parsley, lamb, tomato, pepper, flour, milk):
- Potatobetter flavor fit
- Capsicumbetter flavor fit
- Carrotbetter flavor fit
- Onionthe original
Fit is the average pairing score against butter, parsley, lamb, tomato, pepper, flour, milk. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
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