Name: Cod a LA Maitre D'hotel
Ingredients: cod; ½ cup butter; ¼ teaspoon pepper; 2 tablespoons chives, chopped; 2 tablespoons parsley, chopped; ¼ teaspoon grated nutmeg; 2 tablespoons verjuice or vinegar

Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 34,118 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

The recipe

Ingredients

Contains: milk, fish (auto-detected from the ingredients and method; we can miss things, so check labels)

Directions

Prepare

Dress the cod as desired.
Place the cod on a serving dish.

Make the sauce and serve

In a bowl, mix butter, pepper, chives, parsley, nutmeg, and verjuice or vinegar.
Spread the mixture over the fish and serve.

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 aroma chemistry they share, and how many recipes mention both.

Pepper + parsleytop 2% of all pairs

Aroma overlapstrong

Mentioned together34,118 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Parsley + nutmegtop 3% of all pairs

Aroma overlapstrong

Mentioned together5,062 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Chive + parsleytop 4% of all pairs

Aroma overlapstrong

Mentioned together2,150 recipes

Shared aroma: coumarin (sweet, hay).
Pepper + nutmegtop 4% of all pairs

Aroma overlapstrong

Mentioned together13,015 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Pepper + vinegartop 6% of all pairs

Aroma overlapmoderate

Mentioned together27,805 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).

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

What each ingredient does

Cod: Forms the main body of the dish and provides the flaky, delicate texture.
Butter: Adds richness and fat, carrying the herbs and seasoning over the fish.
Verjuice or vinegar: Adds acidity that brightens the buttery sauce and balances its richness.
Chives: Contribute a mild onion-like aroma and fresh flavour to the butter.
Parsley: Adds fresh, green herbal aroma and flavour to the butter sauce.

Flavor stand-ins for the chive

How well each one fits the dish's main ingredients (butter, pepper, parsley, nutmeg, vinegar):

Capsicumbetter flavor fit
Carrotbetter flavor fit
Potatobetter flavor fit
Chivethe original

Fit is the average pairing score against butter, pepper, parsley, nutmeg, vinegar. 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.