Why it works: Tomato and capsicum match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 10,520 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Tomato Sauce
Ingredients
Directions
Prepare the tomatoes
Remove the skin and seeds from the tomatoes and slice them.
Place the sliced tomatoes in a stew pan with pepper, salt, and crushed crackers.
Stew slowly for one hour.
Season and store
In a separate bowl, mix the pulp with capsicum vinegar, chopped shallots, powdered ginger, and salt.
Store the mixture in small, wide-mouth bottles, corked tightly, in a dry, cool place.
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 + capsicumtop 1% of all pairsAroma overlapstrongMentioned together10,520 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + capsicumtop 2% of all pairsAroma overlapstrongMentioned together34,571 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Capsicum + shallottop 7% of all pairsAroma overlapmoderateMentioned together1,984 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Shallot + gingertop 7% of all pairsAroma overlapmoderateMentioned together565 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Tomato + peppertop 7% of all pairsAroma overlapmoderateMentioned together17,923 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
- Ripe tomatoes
- Provide the main body and pulp that forms the sauce.
- Crushed crackers
- Thicken the stewed tomato pulp as they absorb liquid and break down.
- Capsicum vinegar or white wine vinegar
- Adds sharp acidity that brightens the sauce and helps preserve it.
- Shallots
- Add mild sharpness and savoury depth to the finished sauce.
The step that matters
Stew slowly for one hour. Gentle, long simmering breaks down the tomato solids and lets the cracker starch thicken the pulp evenly. Rapid boiling can scorch the bottom of the pan and leave the texture thin or uneven.
Flavor stand-ins for the shallot
How well each one fits the dish's main ingredients (tomato, pepper, capsicum, ginger):
- Carrotbetter flavor fit
- Eggplantbetter flavor fit
- Sweet potatobetter flavor fit
- Shallotthe original
Fit is the average pairing score against tomato, pepper, capsicum, ginger. 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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