Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
To Fry Tripe
Ingredients
Directions
Prepare the tripe
Simmer the tripe in water mixed with vinegar for 1 hour.
Remove the tripe, drain, and dry it.
Dip the tripe into a batter made from eggs and flour.
Fry and serve
Fry the tripe in plenty of lard or fresh dripping until light brown.
Fry the sliced onions until golden.
Serve the tripe topped with fried onions.
Make a sauce by pouring the cooking liquid into the frying pan, season with salt and pepper, and mix well with the fat before pouring it around the tripe.
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 + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Vinegar + oniontop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + oniontop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
Egg and flour barely smell alike, yet cooks put them together in 106,462 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 dish, becoming tender when simmered and crisp when fried.
- Eggs
- Bind the flour batter so it adheres to the tripe and fries to a golden crust.
- All-purpose flour
- Forms the batter that coats the tripe and browns during frying.
- Vinegar
- Acidity in the simmering water helps soften the tripe's tough connective tissue.
- Onions
- Caramelise in the hot fat, adding sweetness and aroma to the topping.
The step that matters
Drying the tripe before battering. Surface moisture keeps the batter from sticking and creates steam under the coating, so it can slide off or fry unevenly. Thorough drying lets the batter adhere and brown well in hot fat.
Swap the onion
How well each one fits the dish's main ingredients (vinegar, egg, flour, pepper):
- Capsicumfits better
- Shallotfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against vinegar, egg, flour, pepper. 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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