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Watercress Sandwiches

A sandwich made with watercress, chopped 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

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

  2. Mix the chopped hard boiled eggs with the watercress, seasoning with salt and pepper.

  3. Slice the stale loaf into thin slices.

  4. Spread fresh butter on each slice of bread.

Assemble

  1. Cut the watercress mixture into small pieces, removing the stems.

  2. Place the mixture between slices of bread, adding a sprinkle of lemon juice.

  3. Press the slices together firmly and cut into small squares, removing the crusts.

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 fresh, peppery flavour and a green, crisp texture to the filling.
Hard boiled eggs
Add richness and body, helping the filling hold together between the slices.
Stale bread
Its drier crumb stands up to the moist filling and firm pressing better than fresh bread.
Fresh butter
Adds fat and flavour, and forms a barrier that helps keep the bread from soaking up moisture.
Lemon juice
Its acidity brightens the flavour of the eggs and watercress.

The step that matters

Dry the watercress thoroughly. Any water left on the leaves will seep into the bread and make the sandwiches soggy. Drying the leaves well keeps the bread firm and the filling in place.

“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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