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Watercress Sandwiches

A sandwich made with watercress, chopped hard‑boiled eggs, salt, pepper, butter, and lemon juice on stale bread.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Watercress and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 579 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Watercress Sandwiches

two dozen sandwiches

Ingredients

Directions

Prepare

  1. Wash the watercress and dry it thoroughly with a cloth.

  2. Remove the stems from the watercress and chop it into small pieces.

  3. Mix the chopped hard-boiled eggs with salt and pepper.

  4. Slice the stale loaf into thin slices for two dozen sandwiches.

Assemble and serve

  1. Spread butter on each slice of bread, then add the egg mixture and watercress.

  2. Sprinkle a little lemon juice on top, press the slices together, and cut into small squares, removing the crust.

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. Watercress + lemontop 3% of all pairs
    Smell alikestrong
    Cooked together579 recipes

    Shared aroma: coumarin (sweet, hay).

  2. Pepper + lemontop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

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

  3. Bread + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together27,232 recipes

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

  4. Watercress + peppertop 10% of all pairs
    Smell alikemoderate
    Cooked together983 recipes

    Shared aroma: coumarin (sweet, hay).

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

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

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

What each ingredient does

Eggs
Provide the creamy, savoury filling that binds the sandwich together.
Fresh butter
Adds richness and a moisture barrier so the bread stays soft under the filling.
Stale loaf of bread
Forms the thin structure of the sandwich; stale bread slices cleanly and holds its shape.
Lemon juice
Adds acidity that brightens the rich egg and butter flavours.
Watercress
Contributes a fresh, peppery flavour and crisp texture to the filling.

The step that matters

Drying the watercress thoroughly. Excess water makes the bread soggy and loosens the filling, so the watercress should be dried completely before assembly.

“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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