Name: Planked Fish
Ingredients: thick fish or large fish steaks (like salmon or halibut); melted butter; coarse sea salt; hot mashed potatoes; watercress or parsley; lemon

Why it works: Watercress and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 579 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Planked Fish

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare the fish by removing the bones.
Place the fish skin side down on a fish plank.
Brush the fish with melted butter and season with coarse sea salt.
Bake in a 350°F (175°C) oven for 20 to 25 minutes.
Remove from the oven.
Press hot mashed potatoes through a large pastry tube to form a border around the fish.
Brown the potatoes in a 400°F (200°C) oven.
Garnish with watercress or parsley and lemon.

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.

Watercress + lemontop 3% of all pairs

Smell alikestrong

Cooked together579 recipes

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

Smell alikemoderate

Cooked together170 recipes

Shared aroma: coumarin (sweet, hay).
Fish + buttertop 12% of all pairs

Smell alikemoderate

Cooked together4,488 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Potato + lemontop 12% of all pairs

Smell alikemoderate

Cooked together2,230 recipes

Shared aroma: 2-nonenal (fatty, green).
Butter + potatotop 13% of all pairs

Smell alikemoderate

Cooked together6,456 recipes

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