Name: Tench Marinaded and Grilled
Ingredients: 2 or 3 small tench; 1 small onion, finely chopped; 2 shallots, finely chopped; 2 teaspoons parsley, finely chopped; ¼ teaspoon powdered mixed herbs; 2 to 3 tablespoons salad oil; coarse sea salt, to taste; black pepper, to taste; piquant sauce, for serving

Why it works: Shallot and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 3,737 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓

Tench Marinaded and Grilled

Ingredients

Directions

Prepare the fish

Wash and clean the fish thoroughly and remove the gills.
Completely cover the fish with boiling water and let them sit for 5 minutes.
Dry and scale the fish carefully.

Marinate

In a deep dish, season the fish with salt and pepper, then add onion, shallot, parsley, herbs, and salad oil.
Allow the tench to marinate for 2 hours, basting frequently.
Drain the fish well and wrap each one in well-oiled parchment paper.

Grill and serve

Grill the wrapped fish over a clear fire for 10 to 15 minutes, depending on size.
Remove the paper and serve the fish with piquant sauce poured over.

Recipe from a historical cookbook (Internet Archive).

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.

Shallot + parsleytop 1% of all pairs

Smell alikestrong

Cooked together3,737 recipes

Shared aroma: 2,4-decadienal (seaweed).
Parsley + peppertop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Onion + shallottop 8% of all pairs

Smell alikestrong

Cooked together2,431 recipes

Shared aroma: 2,4-decadienal (seaweed).
Onion + parsleytop 9% of all pairs

Smell alikemoderate

Cooked together25,843 recipes

Shared aroma: 2,4-decadienal (seaweed).
Onion + peppertop 11% of all pairs

Smell alikemoderate

Cooked together68,474 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Tench: The fish is the main component, cooked whole so its flesh stays moist inside the wrap.
Salad oil: Carries the herbs and seasoning into the fish and helps prevent sticking and drying during grilling.
Shallots: Add a mild, aromatic sweetness that infuses the flesh during the marinade.
Onion: Contributes aromatic flavour that softens and mellows during marinating.

The step that matters

Wrapping in oiled parchment before grilling. Drained, well-oiled parchment shields the delicate fish from direct flame, so it cooks gently and steams in its own juices rather than drying or charring. Excess marinade left on the fish can flare up and scorch the paper.

Swap the onion

How well each one fits the dish's main ingredients (shallot, parsley, pepper, sauce):

Chivefits better
Horseradishfits better
Mustardfits better
Onionthe original

Fit is the average pairing score against shallot, parsley, pepper, sauce. 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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Tench Marinaded and Grilled