Why it works: Lemon and shallot match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 2,523 recipes. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓
Tench, Baked
Ingredients
Directions
Prepare the fish
Remove the gills from the tench and rub it with lemon juice.
Let it sit for 1 hour.
Bake and make the sauce
Place the fish in a tin, sprinkle with minced shallots, and pour clarified butter over it.
Cover with oiled paper and bake gently until cooked, basting frequently.
For the sauce, mix flour with butter, then pour in boiling water and gradually add milk or cream.
Bring the sauce to a boil, then stir in minced gherkins and lemon juice.
Serve
Serve hot.
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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Lemon + shallottop 6% of all pairsSmell alikestrongCooked together2,523 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Shallot + flourtop 6% of all pairsSmell alikestrongCooked together2,081 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Tench
- The main fish, which is cooked gently until tender and flaky.
- Clarified butter
- Carries heat evenly and adds richness while the fish bakes without burning.
- Flour
- Thickens the sauce as it cooks with the butter and liquids.
- Milk or cream
- Adds moisture and body, giving the sauce a smooth, creamy texture.
- Gherkins
- Add a sharp, tangy flavour that cuts through the richness of the sauce.
The step that matters
Bringing the sauce to a boil after adding milk or cream. Dairy can curdle or scorch when it boils hard, and flour-thickened sauces need steady heat to become smooth and fully thickened. Stir constantly and keep the heat controlled.
Swap the lemon
How well each one fits the dish's main ingredients (shallot, butter, flour, milk):
- Raisinfits better
- Vanillafits about as well
- Coconutfits about as well
- Lemonthe original
Fit is the average pairing score against shallot, butter, flour, milk. Candidates are from the same food group and used in at least 100 recipes.
“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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