Name: Toast Sandwiches
Ingredients: Thin cold toast; Thin slices of bread-and-butter; Pepper to taste; Salt to taste

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 ↓

Toast Sandwiches

Oven, in the book's wordsA slow oven

Ingredients

Thin cold toast
Thin slices of bread-and-butter
Pepper to taste
Salt to taste

Directions

Place a thin piece of cold toast between two slices of thin bread-and-butter to form a sandwich.
Season with pepper and salt.
Optionally, add pulled meat or very fine slices of cold meat to the toast.

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 + peppertop 16% of all pairs

Smell alikemoderate

Cooked together20,964 recipes

Shared aroma: 2-nonenal (fatty, green).
Butter + peppertop 21% of all pairs

Smell alikemoderate

Cooked together85,593 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Thin cold toast: Provides a crisp, dry layer that contrasts with the soft bread and butter.
Bread-and-butter: Supplies the soft bread and fat that carry the sandwich and add richness.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.