Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 17,923 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Tomato Sauce
Ingredients
Directions
Make the sauce
Cut the tomatoes in half and remove the stalks, seeds, and juice.
Place the tomatoes in a saucepan with the shallots and gravy.
Simmer gently for at least 1 hour until the tomatoes are tender.
Strain and serve
Rub the mixture through a fine sieve.
Boil the strained sauce for a few minutes 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.
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Tomato + peppertop 7% of all pairsAroma overlapmoderateMentioned together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Shallot + peppertop 11% of all pairsAroma overlapmoderateMentioned together5,898 recipes
Shared aroma: 2,4-decadienal (seaweed).
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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
- Tomatoes
- Provide the main body and flavour of the sauce as they soften during simmering.
- Shallots
- Add aromatic sweetness and savoury depth to the sauce base.
- Gravy
- Adds liquid and savoury richness, helping the tomatoes break down while simmering.
The step that matters
Simmer gently for at least 1 hour. Slow simmering lets the tomatoes soften fully and release their pectin, so the sauce thickens smoothly when strained. Boiling hard can scorch the bottom of the pan and make the flavour harsh.
Flavor stand-ins for the shallot
How well each one fits the dish's main ingredients (tomato, pepper):
- Capsicumbetter flavor fit
- Eggplantbetter flavor fit
- Carrotbetter flavor fit
- Shallotthe original
Fit is the average pairing score against tomato, pepper. 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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