Why it works: Shallot and thyme match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 1,476 recipes mention both. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓
Tomato Sauce
Ingredients
Directions
Prepare
Chop the shallots very finely.
In an enamelled saucepan, combine the shallots, bay leaf, thyme, and vinegar.
Boil until reduced by half.
Finish the sauce
Add the tomato pulp and anchovy sauce, stirring over heat for 5 minutes.
Strain to remove the herbs.
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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Shallot + thymetop 1% of all pairsAroma overlapstrongMentioned together1,476 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Anchovy + saucetop 2% of all pairsAroma overlapmoderateMentioned together2,057 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Tomato + thymetop 4% of all pairsAroma overlapmoderateMentioned together2,370 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Shallot + vinegartop 12% of all pairsAroma overlapmoderateMentioned together2,374 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Tomato + shallottop 12% of all pairsAroma overlapmoderateMentioned together583 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomato pulp
- Forms the body of the sauce and supplies its main tomato flavour.
- Shallots
- Add a mild, sweet onion-like aroma that mellows as the sauce reduces.
- Vinegar
- Reduced with the shallots to add sharp acidity that brightens the tomato.
- Anchovy sauce
- Adds savoury depth, giving a rounded umami note without tasting fishy.
The step that matters
Boil until reduced by half. Reducing the vinegar and shallots concentrates their flavour and cuts sharpness. Stopping too early leaves the sauce sour and thin, while over-reducing can make it overly strong or sticky.
Flavor stand-ins for the thyme
How well each one fits the dish's main ingredients (tomato, shallot, vinegar, anchovy, sauce):
- Capersbetter flavor fit
- Tarragonbetter flavor fit
- Garlicbetter flavor fit
- Thymethe original
Fit is the average pairing score against tomato, shallot, vinegar, anchovy, sauce. 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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