Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Fricassee of Tripe
Ingredients
Directions
Prepare
Wash and dry the tripe, then cut it into pieces about 2½ inches square.
Cook the tripe
Place the tripe in a stewpan and cover with equal parts of milk and water.
Add a little salt and pepper.
Bring the mixture to a boil.
Add the onions and parsley.
Simmer gently.
Thicken and serve
Knead the butter and flour together until smooth.
After cooking for 1 hour, add the mixture in small pieces to the stewpan.
Stir until the flour is smoothly mixed with the milk.
Continue cooking for about 30 minutes longer.
Season to taste.
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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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 fricassee, becoming tender through long gentle simmering.
- Butter and flour
- Kneaded together and stirred in to thicken the milk and water liquid into a smooth sauce.
- Milk
- Adds richness and body to the cooking liquid, contributing to the creamy sauce.
- Spanish onions
- Soften during simmering and add sweetness and savour to the sauce.
The step that matters
Adding the butter and flour mixture. Flour added in small pieces and stirred well disperses without lumps; dropped in whole or left unstirred it clumps and thickens unevenly.
Swap the onion
How well each one fits the dish's main ingredients (parsley, butter, flour, pepper, milk):
- Potatofits better
- Shallotfits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against parsley, butter, flour, pepper, milk. 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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