Name: Baked Cod Fish
Ingredients: 1 teacup codfish, picked fine and washed; 2 cups mashed potatoes; 1 pint sweet milk; 2 eggs; 1 good sized lump of butter; pepper to taste; coarse sea salt to taste

Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Baked Cod Fish

Ingredients

Directions

The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

Soak the codfish in lukewarm water until cool.

Mix and bake

In a bowl, mix the mashed potatoes, sweet milk, eggs, butter, and season with pepper and salt.
Add the codfish to the mixture and combine well.
Pour the mixture into a pudding dish.
Bake at 400°F (200°C) for about 30 minutes.

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.

Milk + buttertop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Potato + peppertop 9% of all pairs

Smell alikemoderate

Cooked together8,305 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Potato + milktop 9% of all pairs

Smell alikemoderate

Cooked together3,611 recipes

Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
Potato + buttertop 13% of all pairs

Smell alikemoderate

Cooked together6,456 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Egg + buttertop 17% of all pairs

Smell alikemoderate

Cooked together118,967 recipes

Shared aroma: decanal (soap, orange peel).