Why it works: Egg and butter match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and 118,511 recipes mention both. Both carry nonanal, which smells fat, citrus. The science ↓
The recipe
Ingredients
Contains: egg, milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare
Cut the hard-cooked eggs into quarters and arrange them on slices of toast.
Make the sauce
Melt the butter in a pan.
Add the flour and salt, blend, and cook thoroughly.
Gradually add the cream or milk, cooking until slightly thickened.
Stir in the pimentos and sautéed mushrooms, then pour the mixture over the eggs.
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 aroma chemistry they share, and how many recipes mention both.
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Egg + buttertop 8% of all pairsAroma overlapstrongMentioned together118,511 recipes
Shared aroma: nonanal (fat, citrus).
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Mushroom + buttertop 3% of all pairsAroma overlapstrongMentioned together12,516 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Cream + buttertop 3% of all pairsAroma overlapstrongMentioned together41,494 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Flour + buttertop 6% of all pairsAroma overlaplowMentioned together122,858 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Cream + mushroomtop 7% of all pairsAroma overlapmoderateMentioned together4,500 recipes
Shared aroma: 2-heptanol (bitter, floral).
Flour and butter share little aroma chemistry, yet 122,858 recipes mention both: they likely 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
- Eggs
- Hard-cooked eggs form the main body of the dish, giving it substance and protein-rich bulk.
- Egg yolks
- Yolks thicken and enrich the sauce, giving it a smooth, rich texture as they set with heat.
- Cream or milk
- Forms the liquid base of the sauce, adding moisture and a creamy richness.
- Flour
- Thickens the butter and liquid into a smooth sauce when cooked together as a roux.
- Butter
- Adds fat and flavor, and forms the base for the flour roux.
- Mushrooms
- Add earthy flavor and a soft, meaty texture to the sauce.
The step that matters
Cooking the flour into the butter and sauce. Flour must be cooked in the melted butter before liquid is added so its starch can swell and thicken smoothly. Adding cream gradually while stirring prevents lumps and keeps the sauce silky.
“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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