Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Macaroni “au Gratin.”
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 macaroni
Boil the macaroni in salted water until cooked, then pour in cold water to keep it firm and drain.
Make the sauce
In a saucepan, blend a little flour into the milk or cream, then add ¼ ounce of butter, parsley, onion, pepper, salt, and nutmeg.
Stir the mixture over heat until thick, then strain through a fine sieve.
Bake and serve
Combine the sauce with the macaroni, most of the cheese, and the butter, then transfer to a buttered baking dish.
Sprinkle the remaining cheese and a little hot butter on top, then bake at 400°F (200°C) until golden.
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.
-
Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Parsley + nutmegtop 3% of all pairsSmell alikestrongCooked together5,062 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Parmesan cheese + cheesetop 3% of all pairsSmell alikestrongCooked together1,041 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Pepper + nutmegtop 7% of all pairsSmell alikestrongCooked together13,015 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Macaroni
- Forms the body of the dish, holding the sauce and cheese together.
- Milk or cream
- Makes the base of the sauce, giving it a smooth, moist texture.
- Parmesan cheese
- Adds savory flavor and helps the topping brown as it bakes.
- Gruyère cheese
- Melts into the sauce for a rich, stretchy texture and nutty flavor.
- Butter
- Adds richness and fat, and helps the top turn golden in the oven.
The step that matters
Stirring the sauce until thick. Heat thickens the milk or cream with flour as starch swells. Stirring keeps it smooth and prevents lumps or scorching on the pan bottom.
Swap the onion
How well each one fits the dish's main ingredients (parmesan cheese, cheese, butter, milk, parsley, pepper, nutmeg):
- Potatofits better
- Capsicumfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against parmesan cheese, cheese, butter, milk, parsley, pepper, nutmeg. 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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