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Cucumber and Onion Sandwiches

A sandwich with sliced cucumbers, minced onion, and cooked dressing on buttered white bread.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

Cucumber and Onion Sandwiches

Ingredients

Directions

Prepare the vegetables

  1. Slice cucumbers thinly and mince the onion.

  2. Soak them in cold water for 1 hour.

Assemble the sandwiches

  1. Butter slices of white bread with melted butter.

  2. Spread cooked dressing on the buttered bread.

  3. Layer with slices of cucumber and onion.

  4. Wrap the sandwiches in a damp cloth to season.

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. Cucumber + oniontop 8% of all pairs
    Smell alikestrong
    Cooked together6,050 recipes

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

  3. Onion + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

  4. Onion + breadtop 15% of all pairs
    Smell alikemoderate
    Cooked together8,676 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  5. Cucumber + breadtop 16% of all pairs
    Smell alikemoderate
    Cooked together344 recipes

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

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

What each ingredient does

Cucumbers
Provide the crisp, watery filling that gives the sandwich its fresh texture.
Onion
Adds sharp, pungent flavour that balances the mild cucumber.
Melted butter
Coats the bread to add richness and help keep moisture from soaking through.
Cooked dressing
Adds creamy moisture and tang that binds the filling to the bread.
White bread
Forms the soft base and structure that holds the filling together.

The step that matters

Soak the vegetables in cold water. Soaking draws some water into the cucumber and onion slices, firming them up. Drain and dry them well afterward, because excess surface moisture will soften the bread and make the sandwiches soggy.

Swap the cucumber

How well each one fits the dish's main ingredients (onion, butter, bread):

  1. Potatofits better
  2. Leekfits better
  3. Chivefits better
  4. Cucumberthe original

Fit is the average pairing score against onion, butter, 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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