Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
To Boil Tripe
Ingredients
Directions
Prepare the tripe
Wash the tripe well in warm water.
Trim off all the fat from the tripe.
Cut the tripe into small pieces.
Boil the tripe in enough water to cover it for five hours.
After four hours, pour off the water.
Season the tripe with pepper and salt.
Add equal parts milk and water to the tripe.
Boil the tripe in the milk and water for one hour.
Make the onion sauce
Boil the onions until soft.
Drain and mash the onions.
In a clean saucepan, combine the mashed onions with a bit of butter rolled in flour.
Add a splash of cream or milk to the mixture.
Let the mixture boil.
Serve
Add the mixture to the tripe just before serving.
Serve with pepper, vinegar, and mustard.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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 stew and becomes tender through long boiling.
- Onions
- Mashed and boiled soft, they add sweetness and body to the sauce.
- Butter and flour
- Cooked together, the flour thickens the sauce and the butter adds richness.
- Milk
- Simmered with the tripe, it adds mild richness and helps soften the meat.
The step that matters
Boiling the tripe for the full time. Tripe is tough and needs a long, gentle simmer to become tender. Stopping early or boiling too hard can leave it chewy or make it rubbery.
Swap the onion
How well each one fits the dish's main ingredients (pepper, milk, butter, flour, cream):
- Potatofits better
- Leekfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against pepper, milk, butter, flour, cream. 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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