Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Tomato Cheese and Macaroni
Ingredients
Directions
Make the sauce
Melt the butter in a pan until it is brown.
Add the finely chopped onion and brown it in the butter.
Slowly add the flour and tomato, stirring continuously.
Add the grated cheese and stir until melted.
Finish
Mix in the cooked macaroni and season with salt and pepper.
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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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).
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Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Pepper + oniontop 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).
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
- Butter
- Browns with the onion and forms the base of the roux that thickens the sauce.
- Flour
- Combined with the butter to form a roux that thickens the tomato into a smooth sauce.
- Tomato
- Supplies the liquid and acidity that make up the body of the sauce.
- Grated cheese
- Melts into the sauce to add richness and a creamy, savoury flavour.
- Cooked macaroni
- Provides the starchy bulk that the sauce coats.
The step that matters
Slowly add the flour and tomato, stirring continuously. Adding liquid to a hot roux gradually while stirring keeps starch dispersed, so the sauce thickens smoothly instead of forming lumps.
Swap the tomato
How well each one fits the dish's main ingredients (pepper, cheese, onion, butter, flour):
- Potatofits better
- Chivefits better
- Mustardfits better
- Tomatothe original
Fit is the average pairing score against pepper, cheese, onion, 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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