Name: Brain Fritters
Ingredients: Calf’s or pig’s brains; 1 tablespoon salad oil or liquid butter; 1 teaspoon finely chopped parsley; ¼ teaspoon finely chopped shallot or onion; 1 dessertspoon vinegar; Frying fat; Frying batter; Fried parsley

Why it works: Parsley and shallot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 3,737 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓

Brain Fritters

Ingredients

Directions

Wash the brains in salt and water.
Place them in a saucepan, cover with cold water, add vinegar and a little salt, and boil for 5 minutes.
Let the brains cool in cold water, then drain well.
Cut the brains into neat pieces and sprinkle with oil, parsley, and shallot or onion.

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.

Parsley + shallottop 1% of all pairs

Smell alikestrong

Cooked together3,737 recipes

Shared aroma: 2,4-decadienal (seaweed).
Shallot + vinegartop 12% of all pairs

Smell alikemoderate

Cooked together2,374 recipes

Shared aroma: isobutyraldehyde (malty, green).
Butter + parsleytop 15% of all pairs

Smell alikemoderate

Cooked together28,563 recipes

Shared aroma: trans-2-hexenal (green, leafy).
Parsley + vinegartop 16% of all pairs

Smell alikemoderate

Cooked together6,477 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Butter + shallottop 17% of all pairs

Smell alikemoderate

Cooked together4,426 recipes

Shared aroma: eucalyptol (eucalyptus, herbal).