Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 34,122 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Eggs in Cases Au Gratin
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 350°F (175°C).
Grease the inside of 6 paper cases with warmed butter and season with salt and pepper.
Assemble and bake
Break an egg into each case and lightly cover with finely sifted bread crumbs.
Place a small piece of butter on top of each egg.
Bake for 4 minutes.
Brown and serve
Use a salamander or broiler to brown the crumbs.
Serve with fried parsley.
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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Parsley + peppertop 2% of all pairsAroma overlapstrongMentioned together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + breadtop 7% of all pairsAroma overlapmoderateMentioned together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Egg + breadtop 13% of all pairsAroma overlapmoderateMentioned together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
-
Butter + parsleytop 15% of all pairsAroma overlapmoderateMentioned together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Parsley + breadtop 15% of all pairsAroma overlapmoderateMentioned together8,588 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set into a soft custard-like texture when baked, forming the body of each case.
- Butter
- Adds richness and moisture, and helps the crumbs brown.
- Bread crumbs
- Form a light crust over the eggs that browns under heat.
The step that matters
Browning the crumbs. Eggs cook quickly and can overset or dry out under intense heat, so the crumbs should be browned briefly with a salamander or broiler while the egg stays soft inside.
Flavor stand-ins for the parsley
How well each one fits the dish's main ingredients (egg, butter, bread, pepper):
- Parsleythe original
- Nutmegabout as good a flavor fit
Fit is the average pairing score against egg, butter, bread, pepper. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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