Why it works: Garlic and onion match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 29,058 recipes mention both. Both carry furaneol, which smells caramel, strawberry. The science ↓
Tomato Sauce
Ingredients
Directions
Make the sauce
Stew the vegetables until tender.
Cream the butter in a bowl, then mix in the flour.
Add the butter and flour mixture to the sauce and stir until dissolved.
Let it boil for three minutes.
Finish and serve
Strain the sauce around the gateau and serve very hot.
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 aroma chemistry they share, and how many recipes mention both.
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Garlic + oniontop 1% of all pairsAroma overlapstrongMentioned together29,058 recipes
Shared aroma: furaneol (caramel, strawberry).
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Tomato + garlictop 3% of all pairsAroma overlapmoderateMentioned together14,076 recipes
Shared aroma: furaneol (caramel, strawberry).
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Garlic + parsleytop 4% of all pairsAroma overlapstrongMentioned together9,308 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Clove + parsleytop 6% of all pairsAroma overlapstrongMentioned together6,768 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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Tomato + oniontop 8% of all pairsAroma overlapmoderateMentioned together20,633 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
- Strained tomatoes
- Provide the main body, acidity and flavour of the sauce.
- Butter and flour
- Creamed together and stirred in, they thicken the sauce as the starch sets when heated.
- Onion
- Sweetens and deepens the flavour of the sauce as it stews.
The step that matters
Adding the butter and flour mixture. Flour added directly to hot liquid can form lumps. Creaming it into butter first and stirring until dissolved helps it blend smoothly, and the sauce must then boil so the starch fully thickens and loses its raw floury taste.
Flavor stand-ins for the white pepper
How well each one fits the dish's main ingredients (tomato, clove, garlic, onion, parsley, butter, flour):
- Thymebetter flavor fit
- Cuminbetter flavor fit
- Capersbetter flavor fit
- White pepperthe original
Fit is the average pairing score against tomato, clove, garlic, onion, parsley, butter, flour. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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