Why it works: Onion and mustard match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 9,259 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Boiled Tripe
Ingredients
Directions
Prepare
Scrape and wash the tripe thoroughly.
Boil the tripe in water with enough salt to season it until very tender.
Prepare the onions
Boil and wash the onions.
Season the onions with pepper, salt, and a lump of butter.
Serve
Place the seasoned onions in a deep dish and lay the tripe on top, or serve them in separate dishes.
Optionally, serve the tripe with onion sauce 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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Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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; long boiling makes it tender enough to eat.
- Onions
- Become soft and sweet when boiled, forming a mild accompaniment to the tripe.
- Butter
- Adds richness and moisture to the seasoned onions.
The step that matters
Boil the tripe until very tender. Tripe is tough connective tissue, and it only becomes tender after a long, slow simmer. Stopping early leaves it chewy, so it should be checked for tenderness before serving.
Swap the mustard
The recipe marks mustard as optional. How well each one fits the dish's main ingredients (onion, pepper, butter):
- Potatofits better
- Capsicumfits better
- Chivefits better
- Mustardthe original
Fit is the average pairing score against onion, pepper, butter. 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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