Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Roman 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
Remove all fat from the cooked meat and cut it into small pieces.
Chop the bacon coarsely and cut the macaroni into thick rings.
Make the sauce
In a saucepan, combine the milk, onion, lemon peel, and mace; bring to a boil, then simmer gently for 30 minutes.
In another pan, cook the butter and flour together for a few minutes without browning.
Add the milk mixture to the butter and flour, stirring quickly until smooth and thick; season with salt and pepper.
Strain the sauce into a basin and mix in the meat, bacon, and macaroni.
Assemble and bake
Butter a suitable tin mold and coat it with finely broken vermicelli; line it with light pastry.
Fill the mold with the meat mixture and cover with another layer of pastry.
Bake in a preheated oven at 400°F (200°C) until the pastry is thoroughly cooked.
Turn the pie out onto a hot dish and serve with tomato sauce.
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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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Cooked meat
- Forms the bulk of the filling and supplies the main savoury flavour.
- Butter and flour
- Cooked together they form a roux that thickens the milk into a smooth sauce.
- Milk
- Forms the base of the sauce, which binds the filling together and keeps it moist.
- Macaroni
- Adds bulk and chewy texture to the filling once it is set in the sauce.
- Fat bacon
- Adds savoury richness and fat that flavours the meat and sauce.
The step that matters
Cook the butter and flour without browning. Cooking the roux only briefly, without browning, keeps the flour's thickening power and a neutral flavour. Stirring the milk in quickly keeps the sauce smooth rather than lumpy.
Swap the mace
How well each one fits the dish's main ingredients (meat, milk, onion, lemon, butter, flour, pepper):
- Thymefits better
- Parsleyfits better
- Cardamomfits better
- Macethe original
Fit is the average pairing score against meat, milk, onion, lemon, butter, flour, 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.
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