Name: Egg and Gherkin Sandwiches
Ingredients: 4 hard-boiled eggs; 2 tablespoons butter; ¼ teaspoon pepper; ¼ teaspoon salt; 4 gherkins; 8 slices thin bread

Why it works: Butter and bread 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 ↓

Egg and Gherkin Sandwiches

Ingredients

Directions

Prepare the filling

Peel and hard-boil the eggs.
Pass the yolks through a sieve.
Mix the yolks with butter, pepper, and salt.
Finely mince the egg whites and gherkins.
Combine all ingredients well.

Assemble

Spread the mixture between slices of buttered bread.

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.

Butter + breadtop 7% of all pairs

Smell alikemoderate

Cooked together27,232 recipes

Shared aroma: delta-decalactone (sweet, creamy).
Egg + breadtop 13% of all pairs

Smell alikemoderate

Cooked together22,662 recipes

Shared aroma: (e)-2-octenal (fatty, green).
Pepper + breadtop 16% of all pairs

Smell alikemoderate

Cooked together20,964 recipes

Shared aroma: 2-nonenal (fatty, green).
Egg + buttertop 17% of all pairs

Smell alikemoderate

Cooked together118,967 recipes

Shared aroma: decanal (soap, orange peel).
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

Eggs: Provide the rich, creamy body that binds the sandwich filling.
Butter: Adds fat and moisture, making the yolk mixture smooth and spreadable.
Gherkins: Add acidity and crunch, cutting through the richness of the egg.

“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.