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Egg Sandwiches

A sandwich made with hard‑boiled eggs mixed with mayonnaise or melted butter, seasoned with salt and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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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 Sandwiches

Ingredients

Directions

Prepare the egg filling

  1. Hard-boil the eggs and let them cool.

  2. Remove the yolks and rub them into a powder.

  3. Chop the egg whites finely.

  4. Mix the yolks and whites with mayonnaise or melted butter.

  5. Season with salt and pepper to taste.

Assemble

  1. Spread the mixture on slices of brown or white 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.

  1. Butter + breadtop 7% of all pairs
    Smell alikemoderate
    Cooked together27,232 recipes

    Shared aroma: delta-decalactone (sweet, creamy).

  2. Egg + breadtop 13% of all pairs
    Smell alikemoderate
    Cooked together22,662 recipes

    Shared aroma: (e)-2-octenal (fatty, green).

  3. Pepper + breadtop 16% of all pairs
    Smell alikemoderate
    Cooked together20,964 recipes

    Shared aroma: 2-nonenal (fatty, green).

  4. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  5. 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 main filling, with yolks giving richness and whites giving bulk and chew.
Mayonnaise or melted butter
Adds moisture and fat, binding the chopped egg and softening its texture.
Bread
Provides the base and structure that holds the spread filling.

The step that matters

Hard-boil the eggs and let them cool. Eggs that are undercooked leave runny yolks that will not crumble into a powder, while overcooked eggs can turn grey-rimmed and dry. Cooling before peeling and chopping keeps the yolks firm and makes the filling easier to mix evenly.

“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.

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