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Egg Sandwiches

A sandwich made with chopped hard‑boiled eggs, cucumber pickle, pepper, coarse sea salt, mustard, and buttered bread.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Cucumber and mustard match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 2,281 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Egg Sandwiches

Ingredients

Directions

Prepare the filling

  1. Chop hard boiled eggs finely.

  2. Chop cucumber pickle and add to eggs.

  3. Season with pepper, coarse sea salt, and made mustard.

  4. Rub the mixture smooth with a spoon.

Assemble and serve

  1. Spread the mixture between thin slices of buttered bread, removing the crusts.

  2. Arrange on a plate lined with a folded napkin.

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. Cucumber + mustardtop 3% of all pairs
    Smell alikestrong
    Cooked together2,281 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Pepper + mustardtop 9% of all pairs
    Smell alikemoderate
    Cooked together15,430 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Cucumber + peppertop 12% of all pairs
    Smell alikemoderate
    Cooked together5,991 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

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

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

  5. Mustard + breadtop 16% of all pairs
    Smell alikemoderate
    Cooked together1,484 recipes

    Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).

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

What each ingredient does

Hard boiled eggs
Provide the bulk of the filling, with a soft, creamy texture once mashed.
Cucumber pickle
Adds acidity and a crisp, tangy bite that cuts through the rich egg.
Made mustard
Adds sharp, pungent flavour that balances the richness of the eggs.
Buttered bread
Carries the filling and adds fat and richness to each sandwich.

The step that matters

Rub the mixture smooth with a spoon. Pressing the chopped egg and pickle against the bowl breaks the pieces down into a uniform, spreadable paste. Lumps leave dry pockets and tear thin bread when spread.

Swap the cucumber

How well each one fits the dish's main ingredients (egg, pepper, mustard, bread):

  1. Horseradishfits better
  2. Shallotfits better
  3. Lettucefits better
  4. Cucumberthe original

Fit is the average pairing score against egg, pepper, mustard, bread. Candidates are from the same food group and used in at least 100 recipes.

“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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