Why it works: Tomato and celery are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 3,377 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Macaroni Soup
Ingredients
Directions
Prepare the macaroni
Break macaroni into small lengths and cook in salted water until done.
Serve the cooked macaroni with well-seasoned stock.
Make the tomato base
Stew the tomatoes until soft enough to strain.
Make the cream soup
Boil the milk in a double boiler.
Cook ⅓ cup of butter and corn starch together.
Add enough hot milk to make the mixture pour easily.
Stir the mixture carefully into the boiling milk.
Boil for ten minutes.
Add the remaining butter, white pepper, and strained tomatoes.
Serve very hot, adding chopped celery if desired.
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 + celerytop 4% of all pairsSmell alikemoderateCooked together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Tomato + corntop 6% of all pairsSmell alikestrongCooked together2,099 recipes
Shared aroma: 2-nonenal (fatty, green).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Corn + celerytop 9% of all pairsSmell alikemoderateCooked together920 recipes
Shared aroma: 2-methoxy-4-vinylphenol (clove, smoky).
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Milk + corntop 10% of all pairsSmell alikemoderateCooked together6,955 recipes
Shared aroma: hexanal (green, grassy).
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 soup, giving it substance and bite.
- Milk
- Provides the creamy base that the thickened mixture is built on.
- Butter
- Adds richness and fat, and cooks with the starch to form a smooth roux.
- Corn starch
- Thickens the milk into a smooth, pourable soup as it heats.
- Tomatoes
- Add acidity and a fresh tomato flavour that contrasts the creamy milk.
The step that matters
Stirring the starch mixture into the milk. Corn starch clumps if it hits hot liquid unevenly. Thinning the butter and starch with hot milk first, then stirring gently into boiling milk, lets the starch disperse and thicken smoothly.
Swap the celery
The recipe marks celery as optional. How well each one fits the dish's main ingredients (tomato, milk, butter, corn, white pepper):
- Basilfits about as well
- Cinnamonfits about as well
- Thymefits about as well
- Celerythe original
Fit is the average pairing score against tomato, milk, butter, corn, white pepper. 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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