Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Tomato Savoury
Ingredients
Directions
Melt the butter in a saucepan over low heat.
Add the minced onion and fry gently for 5 minutes.
Stir in the chopped tomatoes, season with salt and pepper, and cook until soft.
Mix in the flour and enough milk to cover the mixture, then bring to a boil.
Pass the mixture through a sieve and warm it up again.
Finish with the cream 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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Adds richness and fat, helping carry flavour through the sauce.
- Tomatoes
- Provide the main body, acidity and flavour of the sauce.
- Flour
- Thickens the sauce as it heats with the milk.
- Milk
- Loosens the flour mixture and adds creaminess to the sauce.
- Cream
- Adds smoothness and richness at the end.
The step that matters
Mix in the flour and milk, then bring to a boil. Flour must be fully mixed in and brought to a boil so its starch swells and thickens the sauce; stirring prevents lumps forming at the bottom of the pan.
Swap the tomato
How well each one fits the dish's main ingredients (butter, onion, pepper, milk, flour, cream):
- Potatofits better
- Leekfits better
- Chivefits better
- Tomatothe original
Fit is the average pairing score against butter, onion, pepper, milk, flour, cream. 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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