Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 34,118 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
The recipe
Ingredients
Contains: milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
The book says “a good oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the eggplant
Peel the eggplant and cut it into 1‑inch dice.
Put the eggplant into a saucepan with about ½ cup of boiling water.
Simmer gently until tender, about 10 to 15 minutes.
Drain the eggplant in a colander, squeezing out excess water with a saucer.
Make the filling
Fry the onions in butter until soft.
Remove the saucepan and onions from heat, then stir in the eggplant, parsley, pepper, salt, vinegar, and about 2 heaping tablespoons of butter.
Bake and serve
Transfer the mixture to a baking dish, cover with browned bread crumbs and dots of butter.
Bake at 400°F (200°C) for 20 to 25 minutes.
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 together34,118 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + breadtop 3% of all pairsAroma overlapstrongMentioned together27,145 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Eggplant + parsleytop 4% of all pairsAroma overlapstrongMentioned together328 recipes
Shared aroma: 1-hexanol (resin, flower).
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Eggplant + peppertop 5% of all pairsAroma overlapstrongMentioned together1,123 recipes
Shared aroma: guaiacol (smoky, sweet).
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Onion + parsleytop 6% of all pairsAroma overlapstrongMentioned together25,834 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggplant
- Forms the soft, tender body of the dish once simmered and drained.
- Onions
- Softened in butter, they add sweetness and aromatic depth to the filling.
- Butter
- Adds richness and fat, and browns the bread crumb topping.
- Vinegar
- Adds acidity that brightens the mild, rich eggplant and onion flavors.
- Bread crumbs
- Form a crisp, browned topping when baked.
The step that matters
Drain the eggplant well. Eggplant holds a lot of water. Squeezing out the excess keeps the filling from turning watery and loose during baking, so it holds together under the crumb topping.
Flavor stand-ins for the eggplant
How well each one fits the dish's main ingredients (onion, parsley, butter, vinegar, bread, pepper):
- Capsicumbetter flavor fit
- Potatobetter flavor fit
- Carrotbetter flavor fit
- Eggplantthe original
Fit is the average pairing score against onion, parsley, butter, vinegar, 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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