Why it works: Gruyere cheese and parmesan cheese match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 152 recipes. Both carry ethyl 2-methylbutyrate, which smells fruity, apple. The science ↓
Sole Mornay
Ingredients
Directions
The book says “a very hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
Lay the sole in a buttered dish and sprinkle with fish fumet.
Add the butter pieces on top of the sole.
Poach and assemble
Poach the sole gently until cooked through.
Coat the bottom of the dish with Mornay sauce.
Drain the fish and place it on the prepared dish.
Cover the fish with more Mornay sauce.
Bake and serve
Sprinkle with grated Gruyère and Parmesan cheese.
Bake in the hot oven until golden and bubbly.
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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Gruyere cheese + parmesan cheesetop 1% of all pairsSmell alikestrongCooked together152 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
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Butter + parmesan cheesetop 9% of all pairsSmell alikemoderateCooked together4,163 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Butter + gruyere cheesetop 9% of all pairsSmell alikemoderateCooked together323 recipes
Shared aroma: gamma-decalactone (peach, creamy).
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Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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
- Sole
- Forms the delicate flaky fish base that is gently cooked and served under the sauce.
- Mornay sauce
- Creamy cheese sauce that coats the fish, adding moisture and richness.
- Gruyère cheese
- Melts and browns on top, adding savory flavor and a golden crust.
- Parmesan cheese
- Adds sharp, salty flavor and helps the topping brown well.
- Butter
- Adds richness and moisture to the fish as it poaches and bakes.
The step that matters
Poach the sole gently until cooked through. High heat or overcooking toughens fish proteins, causing them to dry out and turn rubbery. Gentle poaching keeps the flesh tender and moist.
“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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