Name: Cod and Oysters
Ingredients: 1 boiled cod; oysters (as needed); mashed potatoes (made with butter and cream or milk)

Why it works: Oyster and potato match in chemistry and in kitchens. They rank in the top 9% of all ingredient pairs, and 228 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)

1 boiled cod
oysters (as needed)
mashed potatoes (made with butter and cream or milk)

Directions

Prepare

Prepare a boiled cod and oyster soup according to their respective recipes.
Remove the bones and skin from the cod.

Serve

Serve the soup alongside the cod and mashed potatoes.
Help in soup plates with fish, oysters, and potatoes together, mixing them like a chowder as you eat.

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.

Oyster + potatotop 9% of all pairs

Aroma overlapstrong

Mentioned together228 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).

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

What each ingredient does

Cod: Provides the flaky white fish that forms the main body of the dish.
Oysters: Add briny, savory flavor to the soup as they cook gently in the liquid.
Mashed potatoes: Add body and creaminess, thickening the dish as they mix into the soup.

“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.