Why it works: Onion and garlic 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
Prepare the vegetables
Wash and scrape the carrot thinly, then cut it into small pieces.
Skin, scald, and slice the onion, leek, and garlic.
Make the sauce
In a pan, melt the butter and add the carrot, onion, leek, garlic, sugar, lemon juice, and ham.
Pour in the tin of tomatoes and simmer slowly until soft enough to pass through a sieve.
Rub the mixture through a sieve and return the juice to a clean pan.
Thicken the juice with the rice flour, allow it to boil, and serve.
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.
-
Onion + garlictop 1% of all pairsAroma overlapstrongMentioned together29,058 recipes
Shared aroma: furaneol (caramel, strawberry).
-
Carrot + leektop 3% of all pairsAroma overlapstrongMentioned together1,310 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + leektop 4% of all pairsAroma overlapstrongMentioned together1,326 recipes
Shared aroma: ethyl butyrate (apple, fruity).
-
Leek + garlictop 4% of all pairsAroma overlapstrongMentioned together150 recipes
Shared aroma: coumarin (sweet, hay).
-
Carrot + clovetop 5% of all pairsAroma overlapstrongMentioned together5,873 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Melts to form the fat base that carries the vegetable flavours.
- Tomatoes
- Form the main body and acidity of the sauce once simmered and sieved.
- Rice flour
- Thickens the strained juice as it comes to a boil, giving the sauce body.
- Onion
- Adds savoury sweetness and aroma as it softens in the butter.
The step that matters
Simmer until soft, then sieve. The vegetables must be fully soft before rubbing through a sieve; undercooked pieces will not pass through and leave a grainy texture.
Flavor stand-ins for the lemon
How well each one fits the dish's main ingredients (butter, carrot, onion, leek, clove, garlic, sugar):
- Lemonthe original
- Avocadoabout as good a flavor fit
Fit is the average pairing score against butter, carrot, onion, leek, clove, garlic, sugar. 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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