Why it works: Pepper and parsley 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 Tomato
Ingredients
Directions
Cook the macaroni
Boil 1 pound of macaroni in a pot half-filled with boiling water and ½ teaspoon of salt for about 20 minutes until tender.
Drain the macaroni in a colander and place it on a dish.
Sprinkle 2 tablespoons of grated cheese over the macaroni.
Make the tomato sauce
Prepare the tomato sauce by combining 1 quart of tomatoes, ¼ teaspoon of salt, ¼ teaspoon of pepper, ½ small onion, 1 teaspoon of parsley, and a piece of lard in a saucepan.
Simmer the sauce slowly for 2 hours, adding water if it gets too dry.
Serve
Pour the strained tomato sauce over the macaroni before serving.
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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + parsleytop 8% of all pairsSmell alikemoderateCooked together5,398 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Macaroni
- Forms the bulk of the dish and absorbs flavour from the sauce as it sits.
- Tomatoes
- Provide the main body, moisture and acidity of the sauce.
- Lard
- Adds fat that gives the sauce richness and a smoother mouthfeel.
- Grated cheese
- Adds savoury, salty flavour and a little richness to the pasta.
The step that matters
Simmer the sauce slowly for 2 hours. Long, gentle simmering evaporates excess water and concentrates the tomato flavour, while the sauce can scorch or stick if it runs dry, so adding water as needed keeps it from burning.
Swap the onion
How well each one fits the dish's main ingredients (cheese, tomato, pepper, parsley, egg):
- Capsicumfits better
- Carrotfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against cheese, tomato, pepper, parsley, 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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