Why it works: Onion and tomato are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 20,633 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Macaroni and Tomato
Ingredients
Directions
Prepare the macaroni
Break macaroni into 1-inch pieces.
Cook in a large pot of boiling salted water until tender, then drain and rinse with cold water.
Make the tomato sauce
In a saucepan, cook tomatoes with water, onion juice, sugar, salt, pepperberry, and bay leaf for 15 minutes, then strain.
In the same saucepan, melt butter, add flour, and cook for a minute.
Gradually add the strained tomato mixture to the butter and flour, stirring until thickened.
Add the cooked macaroni to the sauce and mix well.
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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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Tomatoes
- Provide the main body and acidic flavour of the sauce.
- Butter
- Adds richness and fat, carrying flavour through the sauce.
- Flour
- Thickens the butter and tomato mixture into a smooth sauce.
- Macaroni
- Forms the starchy base that the sauce coats.
The step that matters
Adding the tomato mixture to the roux. Adding the liquid gradually while stirring keeps the flour from clumping. Whisking in small amounts lets the starch hydrate evenly, so the sauce thickens smoothly rather than lumpy.
Swap the tomato
How well each one fits the dish's main ingredients (onion, sugar, butter, flour):
- Leekfits better
- Chivefits better
- Okrafits better
- Tomatothe original
Fit is the average pairing score against onion, sugar, butter, flour. 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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