Why it works: Fish and oyster match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 488 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
The recipe
Ingredients
Contains: milk, fish, shellfish (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare
Clean the cod thoroughly, especially the backbone.
Place the fish in a large pot of cold water with a handful of coarse sea salt.
Cook
Bring the water to a boil, skimming off any foam.
Reduce heat and let it boil gently until nearly cooked.
Move the pot to the side of the fire and let it finish cooking.
Drain the fish on a plate over boiling water for 1-2 minutes.
Serve
Serve on a hot napkin with roe and liver boiled separately.
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.
-
Fish + oystertop 3% of all pairsAroma overlapstrongMentioned together488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Horseradish + oystertop 7% of all pairsAroma overlaplowMentioned together282 recipes
Shared aroma: 2-methylbutyraldehyde (malty, chocolate).
-
Fish + horseradishtop 8% of all pairsAroma overlaplowMentioned together178 recipes
Shared aroma: acetaldehyde (pungent, ethereal).
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; its flaky flesh firms and separates as it cooks.
- Coarse sea salt
- Seasons the water and the fish, flavouring the flesh as it poaches.
The step that matters
Bring the water to a boil, then reduce to a gentle boil. Vigorous boiling can break up the delicate flesh and toughen it, while a gentle simmer cooks the fish evenly. Skimming foam keeps the broth clean.
Flavor stand-ins for the horseradish
How well each one fits the dish's main ingredients (fish, oyster):
- Cucumberbetter flavor fit
- Potatoabout as good a flavor fit
- Shallotabout as good a flavor fit
- Horseradishthe original
Fit is the average pairing score against fish, oyster. 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.
More boiled cod recipes
You might also like
Illustration
Illustration
Illustration
IllustrationThe Sunday pairing: one pairing, the chemistry behind it, and how to cook it. No spam, unsubscribe anytime.
Prefer an account? Create a free account for sign-in; Pro adds the full results and chemistry.