Why it works: Ketchup and sauce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 1,099 recipes mention both. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Fillet of Sole Au Gratin
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 350°F (175°C).
Butter a baking tin and place the sole fillets inside.
Make the sauce and bake
In a bowl, mix mushroom ketchup, Anchovy Sauce, sherry, sliced mushrooms, parsley, chives, consommé, and coarse sea salt.
Pour the mixture over the fillets and cover the tin with buttered paper.
Bake for 15 minutes.
Finish and serve
Remove the paper, sprinkle browned breadcrumbs on each fillet, and add a small piece of butter on top.
Return to the oven for 5 minutes before serving.
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.
-
Ketchup + saucetop 1% of all pairsAroma overlapstrongMentioned together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Anchovy + saucetop 2% of all pairsAroma overlapmoderateMentioned together2,057 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Ketchup + anchovytop 2% of all pairsAroma overlapstrongMentioned together479 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Parsley + chivetop 3% of all pairsAroma overlapstrongMentioned together2,150 recipes
Shared aroma: coumarin (sweet, hay).
-
Mushroom + sherrytop 5% of all pairsAroma overlapmoderateMentioned together1,176 recipes
Shared aroma: 2-methoxy-4-methylphenol (smoky, clove).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sole fillets
- Provide the delicate white fish that is baked and served in the dish.
- Mushrooms
- Add earthy flavour and moisture that releases into the sauce as it bakes.
- Consommé
- Adds savoury liquid that moistens the fish and forms the sauce.
- Sherry
- Adds acidity and depth of flavour to the sauce.
- Browned breadcrumbs
- Form a crisp, golden topping through browning.
- Butter
- Adds richness and fat that helps the topping brown and the fish stay moist.
The step that matters
Covering the tin with buttered paper. The paper traps steam so the fish cooks gently in the sauce and stays moist, and it must be removed before the breadcrumbs are added so they can brown.
Flavor stand-ins for the parsley
How well each one fits the dish's main ingredients (mushroom, ketchup, anchovy, sauce, sherry, chive, butter):
- Capersbetter flavor fit
- Thymeabout as good a flavor fit
- Garlicabout as good a flavor fit
- Parsleythe original
Fit is the average pairing score against mushroom, ketchup, anchovy, sauce, sherry, chive, butter. 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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