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 with Tomato Sauce
Ingredients
Directions
Cook the macaroni
Boil a pot of water and add 1 teaspoon of salt.
Add the macaroni and cook for about 20 minutes until tender.
Drain the macaroni in a colander.
Sprinkle 2 tablespoons of grated cheese over the macaroni.
Make the sauce
In a saucepan, combine the tomatoes, ¼ teaspoon salt, ¼ teaspoon pepper, chopped onion, parsley, and lard.
Simmer the sauce slowly for 2 hours, adding water if it gets too dry.
Serve
Pour the 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.
Photo for illustrative purposes only · Contact us to use it
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).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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 some of the sauce's moisture.
- Tomatoes
- Provide the main body, moisture and acidity of the sauce.
- Lard
- Adds fat that carries flavour and gives the sauce a richer mouthfeel.
- Grated cheese
- Adds savory, salty flavour and a slightly sticky body to the pasta.
- Onion
- Adds aromatic sweetness that mellows as the sauce simmers.
The step that matters
Simmering the sauce slowly for 2 hours. A long, gentle simmer lets water evaporate and concentrates the tomato flavour, while the sauce can scorch or dry out at the bottom of the pan if the heat is too high. Adding water as needed keeps it from thickening too far.
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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