Why it works: Milk and bread are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 11,466 recipes. Both carry 2-undecenal, which smells sweet. The science ↓
Stewed Tripe and Onions
Ingredients
Directions
Prepare the tripe
Wash the tripe well in warm water.
Place it in a pan with plenty of cold water and heat until very hot, but do not boil.
Pour away the water, scrape the tripe until clean, then return it to a pan of cold water.
Allow to simmer for 6 to 9 hours until tender.
Make the stew
Pour off the liquid, cut the tripe into neat pieces, and place in a saucepan with milk and sliced onions.
Simmer for 1 hour.
Blend flour with a little cold milk, pour in the milk from the tripe, and add salt and pepper to taste.
Return to the pan and stir until it boils.
Serve
Serve neatly and garnish with toasted bread.
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 + breadtop 11% of all pairsSmell alikemoderateCooked together11,466 recipes
Shared aroma: 2-undecenal (sweet).
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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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Onion + breadtop 15% of all pairsSmell alikemoderateCooked together8,676 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Pepper + breadtop 16% of all pairsSmell alikemoderateCooked together20,964 recipes
Shared aroma: 2-nonenal (fatty, green).
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 ingredient, becoming tender through long, gentle simmering.
- Milk
- Forms the creamy liquid of the stew and gives it a mild, rich flavour.
- Onions
- Add sweetness and aroma as they soften in the milk.
- Flour
- Thickens the milky liquid into a smooth sauce when it boils.
The step that matters
Return to the pan and stir until it boils. Flour thickens milk only once it reaches a boil, and stirring keeps it smooth. Stopping early leaves a thin sauce, while uneven heating can make lumps.
Swap the onion
How well each one fits the dish's main ingredients (milk, flour, pepper, bread):
- Capsicumfits better
- Arrowrootfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against milk, flour, pepper, bread. 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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