Why it works: Onion and tomato are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 20,633 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Tripe Stewed
Ingredients
Directions
Prepare the tripe
Wash the tripe and place it in a pot with cold water.
Bring to a boil, then drain and cover with fresh cold water.
Cut the tripe into neat pieces and bring to a boil again.
Simmer and thicken
Simmer for about 3 hours, adding the onions.
Once tender, strain off some of the liquid.
Add milk to the liquid and thicken with flour.
Add some of the onions back in and boil for about 5 minutes.
Serve
Serve very hot.
Optionally, stew tomatoes with the tripe for added flavor.
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 + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 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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Milk + tomatotop 15% of all pairsSmell alikemoderateCooked together2,226 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + milktop 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
- Forms the main body of the stew and becomes tender during long, slow simmering.
- Onions
- Add sweetness and savory depth to the stock as they cook down.
- Milk
- Adds creaminess and mild sweetness to the thickened liquid.
- Flour
- Thickens the liquid into a smooth, body-rich sauce.
The step that matters
Thickening with flour and milk. Flour must be cooked in the liquid long enough to lose its raw taste and thicken evenly. Adding milk to a hot, thickened liquid and boiling gently helps keep the sauce smooth rather than grainy.
Swap the tomato
The recipe marks tomato as optional. How well each one fits the dish's main ingredients (onion, milk, flour):
- Potatofits better
- Chivefits better
- Leekfits better
- Tomatothe original
Fit is the average pairing score against onion, milk, flour. 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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