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 ↓
Boiled Tripe
Ingredients
Directions
Prepare the tripe
Weigh and wash the tripe.
Place the tripe in boiling water with skim milk for 5 minutes.
Simmer the tripe for about 1 hour and 15 minutes until well done.
Prepare the onions
Peel and boil the onions in salted water for 1 hour until tender.
Chop the boiled onions finely.
Make the onion sauce
Thicken boiling milk with flour, add chopped onions, season with pepper and salt, and simmer for 5 minutes.
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).
-
Onion + flourtop 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
- Is the main protein, becoming tender through long simmering.
- Onions
- Add sweetness and body to the sauce once boiled and chopped.
- Flour
- Thickens the boiling milk into a smooth, lightly bodied sauce.
- Skim milk
- Gently cooks the tripe and contributes to the milky sauce base.
The step that matters
Thickening the boiling milk with flour. Flour must be stirred in smoothly so it hydrates and gelatinizes evenly; added lumpy or to milk that is not hot enough, it stays clumpy and the sauce will not thicken properly.
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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