Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Tripe, Stewed
Ingredients
Directions
Prepare the tripe
Cover the tripe with cold water and bring to a boil.
Drain well and cut the tripe into 1-inch squares.
Stew
Return the tripe to the stewpan, add the milk, onion, salt, and pepper.
Bring to a boil, then simmer gently for about 2 hours.
About 10 minutes before serving, mix the flour with a little cold milk until smooth.
Stir the flour mixture into the stew until boiling, then simmer for a few more 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 their aromas overlap, and how often cooks already put them together.
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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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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + oniontop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + oniontop 20% of all pairsSmell alikemoderateCooked together13,418 recipes
Shared aroma: hexanal (green, grassy).
Milk and flour barely smell alike, yet cooks put them together in 78,219 recipes: they work on texture and structure more than aroma.
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 during long gentle simmering.
- Milk
- Forms the liquid base of the stew and gives it a mild, creamy richness.
- Flour
- Thickens the milk as it boils, giving the stew a smooth, body-rich texture.
- Onion
- Adds savory aroma and sweetness as it softens in the simmering liquid.
The step that matters
Stirring the flour mixture into the stew. Flour mixed with cold milk first disperses without lumps. Adding it dry or to hot liquid can clump, and the stew must reach a boil so the starch thickens fully.
Swap the onion
How well each one fits the dish's main ingredients (milk, flour, pepper):
- Capsicumfits better
- Arrowrootfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against milk, flour, pepper. 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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