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Watercress Sandwiches

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

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

Ingredients

Directions

Prepare the watercress

  1. Wash the watercress.

  2. Dry the watercress in a cloth, pressing out all moisture.

  3. Remove the stems from the watercress.

  4. Cut the watercress into small pieces.

Make the filling

  1. Mix the watercress with the chopped hard-boiled eggs, and season with salt and pepper.

Assemble and cut

  1. Slice the stale loaf of bread into thin slices.

  2. Spread butter on each slice of bread.

  3. Place the cress mixture between two slices of bread.

  4. Sprinkle a little lemon juice on top.

  5. Press down firmly.

  6. 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

Watercress
Adds a peppery, fresh flavour and moisture-free green bulk to the filling.
Hard-boiled eggs
Provide the rich, creamy body that binds the sandwich filling.
Stale loaf of bread
Forms the structure holding the filling; stale bread slices cleanly and resists sogginess.
Fresh butter
Adds fat and richness, and a barrier that helps keep the bread from soaking up moisture.

The step that matters

Dry the watercress thoroughly. Any water left on the watercress will leach into the filling and soak the bread, making the sandwiches soggy. Pressing out moisture before chopping keeps the filling firm and the bread intact.

“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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