Name: Sandwiches for Travellers
Ingredients: slices of bread; butter; grated dried beef or tongue

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 ↓

Sandwiches for Travellers

Ingredients

slices of bread
butter
grated dried beef or tongue

Directions

Spread a thin layer of butter on a slice of bread.
Sprinkle a layer of grated dried beef or tongue on top.
Place another buttered slice of bread on top.
Repeat the process to create additional layers.
Cut the sandwich into four parts and wrap each in separate paper.

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).
Bread + beeftop 13% of all pairs

Smell alikemoderate

Cooked together4,032 recipes

Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
Butter + beeftop 16% of all pairs

Smell alikemoderate

Cooked together10,847 recipes

Shared aroma: 2-furfurylthiol (coffee, roasted).