Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Winter Sauce
Ingredients
Directions
Prepare
Chop the green tomatoes, onions, and peppers finely.
In a large bowl, combine the chopped vegetables with salt, pepper, and spices to taste.
Add the brown sugar and mix well.
Pickle and bottle
Pour boiling vinegar over the mixture until it is fully covered.
Bottle the sauce for winter use.
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 their aromas overlap, and how often cooks already put them together.
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Green tomatoes
- Provide the bulk and tart base of the sauce.
- Onions
- Add savory depth and body as they soften in the vinegar.
- Brown sugar
- Adds sweetness that balances the sharpness of the vinegar.
- Vinegar
- Acts as the preserving liquid and supplies the sharp acidity.
The step that matters
Covering with boiling vinegar. The vinegar must fully cover the vegetables so they stay submerged. Acid in the liquid is what keeps the sauce from spoiling during storage, so exposed pieces are at risk.
Swap the onion
How well each one fits the dish's main ingredients (tomato, pepper, sugar, vinegar):
- Capsicumfits better
- Cucumberfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against tomato, pepper, sugar, vinegar. Candidates are from the same food group and used in at least 100 recipes.
“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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