Name: Sardine Sandwiches
Ingredients: tinned sardines; stale bread; butter; parsley

Why it works: Bread and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓

Sardine Sandwiches

Ingredients

tinned sardines
stale bread
butter
parsley

Directions

Remove the skin from each sardine, split it open, cut off the tail, and remove any bones.
Take thin slices of stale bread and butter them.
Place sardines between two slices of bread, cut away the crust, and press the slices together.
Cut the sandwiches into long, narrow pieces.
Serve on a dish covered with a neatly-folded napkin and garnish with parsley.

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.

Bread + buttertop 7% of all pairs

Smell alikemoderate

Cooked together27,232 recipes

Shared aroma: delta-decalactone (sweet, creamy).
Butter + parsleytop 15% of all pairs

Smell alikemoderate

Cooked together28,563 recipes

Shared aroma: trans-2-hexenal (green, leafy).
Bread + parsleytop 15% of all pairs

Smell alikemoderate

Cooked together8,588 recipes

Shared aroma: 2,4-decadienal (seaweed).