Why it works: Pepper and tomato 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 ↓
Tripe Lyonnaise
Ingredients
Directions
Make the tripe
In a frying pan, melt the butter over medium heat.
Add the chopped onion and fry until brown.
Stir in the vinegar, salt, and cayenne pepper.
Add the tripe squares and stir to prevent burning.
Serve
Cover the bottom of a heated platter with tomato sauce, add the tripe mixture, and serve hot.
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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Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + tomatotop 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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Vinegar + peppertop 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
- Tripe
- Forms the main body of the dish, becoming tender and savory as it heats in the butter.
- Butter
- Provides fat for frying, carrying flavor and helping the onion brown.
- Onion
- Browns in the butter to add sweetness and savory depth.
- Vinegar
- Adds sharp acidity that brightens the rich tripe and onion.
The step that matters
Stirring the tripe in the pan. The tripe and onion mixture can scorch on the bottom of the pan, so stirring often keeps the heat even and prevents burning, which would make the dish taste bitter.
Swap the onion
How well each one fits the dish's main ingredients (butter, vinegar, pepper, tomato, sauce):
- Capsicumfits better
- Mustardfits better
- Cucumberfits about as well
- Onionthe original
Fit is the average pairing score against butter, vinegar, pepper, tomato, sauce. 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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