Why it works: Flour and butter are a kitchen classic. They rank in the top 6% of all ingredient pairs, and 122,858 recipes mention both. Both carry isobutyraldehyde, which smells malty, green. The science ↓
The recipe
Ingredients
Contains: milk, wheat, fish (auto-detected from the ingredients and method; we can miss things, so check labels)
Also mentioned in the method: fish
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Prepare the sole as directed and cut four diagonal incisions on each side.
Rub in the salt and minced eschalots, then dust the sole with flour.
Cook and serve
Broil the sole over a slow, clear fire.
Melt the butter in a clean saucepan, then add the lemon juice and cayenne.
Lay the sole on a hot gratin dish and rub the sauce into it.
Cover the fish with the remaining sauce and place it in a hot oven at 400°F (200°C) for 2 minutes.
Serve quickly on the dish.
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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Flour + buttertop 6% of all pairsAroma overlaplowMentioned together122,858 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + lemontop 8% of all pairsAroma overlapstrongMentioned together41,197 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Flour + lemontop 13% of all pairsAroma overlaplowMentioned together29,725 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter share little aroma chemistry, yet 122,858 recipes mention both: they likely 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
- Eschalots
- Provide aromatic flavour that is rubbed into the fish before cooking.
- Butter
- Carries the sauce and adds richness and a smooth, fatty mouthfeel.
- Lemon juice
- Adds acidity that brightens the rich butter sauce and balances the fish.
- Flour
- Dusted on the fish to help it brown lightly and hold the sauce.
The step that matters
Cover the fish with the remaining sauce and place it in a hot oven. Only two minutes in a hot oven is set, so the fish must be warmed through without overcooking. Rich butter sauce can separate if overheated, so keep it brief and serve at once.
Flavor stand-ins for the lemon
How well each one fits the dish's main ingredients (flour, butter):
- Raisinbetter flavor fit
- Vanillabetter flavor fit
- Coconutbetter flavor fit
- Lemonthe original
Fit is the average pairing score against flour, 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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