Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Eggs As Tripe
Ingredients
Directions
Prepare
Cut the hard-boiled eggs into slices.
Peel the pickled onions and fry them in butter over low heat.
Make the sauce
Dredge the onions with flour, then add stock and cream.
Stew gently until the onions are tender, seasoning with salt and pepper.
Add the egg slices and heat through, moving the pan to the side of the fire.
Serve
Turn the mixture onto a hot dish, garnish with croutons, and serve immediately.
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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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + breadtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, 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
- Hard-boiled eggs
- Form the main body of the dish and absorb the flavour of the creamy sauce as they heat through.
- Small pickling onions
- Provide the tender, tangy-sweet vegetable base that softens as the dish stews.
- Butter
- Adds fat and richness and helps the onions brown lightly at the start.
- All-purpose flour
- Thickens the stock and cream into a smooth sauce that coats the onions and eggs.
- Stock
- Supplies savoury liquid that cooks the onions gently and forms the base of the sauce.
- Cream
- Adds richness and body to the sauce, giving it a smooth, velvety texture.
The step that matters
Heating the egg slices through. Egg whites turn rubbery and eggs can toughen if held at a high heat, so the pan should be moved to the cooler side of the fire and the eggs warmed gently just until heated through.
Swap the onion
How well each one fits the dish's main ingredients (egg, butter, flour, cream, pepper, bread):
- Leekfits better
- Spinachfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against egg, butter, flour, cream, 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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