Why it works: Parsley and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 14,037 recipes mention both. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Sole 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 the fish
Skin both sides of the sole, cut off the head and fins, and make several incisions across one side.
Place the sole, cut side up, in a well-buttered gratin dish.
Season and top
Season with salt and pepper, then add half a small glass of white wine, lemon juice, mushroom liquor, and chopped parsley.
Place sliced preserved mushrooms down the center of the fish and cover with Italian sauce.
Sprinkle with brown breadcrumbs and dot with small pieces of butter.
Bake and serve
Bake in a 350°F (175°C) oven for 20 to 30 minutes, depending on the size of the sole.
Serve the dish on a larger plate as it comes out of the oven.
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 + lemontop 1% of all pairsAroma overlapstrongMentioned together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Parsley + peppertop 2% of all pairsAroma overlapstrongMentioned together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Pepper + lemontop 3% of all pairsAroma overlapstrongMentioned together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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White wine + mushroomtop 5% of all pairsAroma overlapmoderateMentioned together1,765 recipes
Shared aroma: ethyl octanoate (fruity).
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Mushroom + buttertop 7% of all pairsAroma overlapmoderateMentioned together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sole
- Forms the main body of the dish, cooking into flaky, tender fillets.
- White wine
- Adds acidity and moisture, helping the fish steam gently under the topping.
- Preserved mushrooms
- Contribute savory, earthy flavor and moisture to the filling.
- Brown breadcrumbs
- Form a crisp, golden browned crust on top of the dish.
- Butter
- Adds richness and helps the breadcrumbs brown in the oven.
The step that matters
Bake for the right time. Thin or thick fillets cook at different rates, so checking early keeps the fish moist and flaky rather than dry and rubbery as the proteins tighten with overcooking.
“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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