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
Prepare
Skin the tomatoes and beat the pulp until smooth.
In a small pan, melt the butter over medium heat.
Cook
Add the tomato pulp, cayenne pepper, and finely chopped shallot.
Stew for 30 minutes, stirring occasionally.
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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Pepper + shallottop 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).
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Butter + shallottop 17% of all pairsAroma overlapmoderateMentioned together4,426 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Butter + peppertop 21% of all pairsAroma overlapmoderateMentioned together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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 liquid that becomes the sauce as it stews.
- Butter
- Adds richness and fat, carrying flavor and giving the sauce a smooth mouthfeel.
- Shallot
- Adds a mild, aromatic sweetness that deepens as it cooks into the sauce.
The step that matters
Stew for 30 minutes, stirring occasionally. Slow simmering evaporates excess water and concentrates flavor. Stirring prevents the sauce from sticking to the pan and scorching on the bottom.
Flavor stand-ins for the shallot
How well each one fits the dish's main ingredients (tomato, butter, pepper):
- Capsicumbetter flavor fit
- Potatobetter flavor fit
- Carrotbetter flavor fit
- Shallotthe original
Fit is the average pairing score against tomato, butter, 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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