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Tomato and Egg Sandwich

A sandwich made with hard‑boiled egg whites, yolk mixture, tomato pulp, and buttered bread.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Bread and butter 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 ↓

Tomato and Egg Sandwich

Ingredients

Directions

  1. Chop the whites of the hard boiled eggs very fine.

  2. Mash the yolks and blend with thick cream, tomato pulp, salt, pepper, and sugar.

  3. Spread the mixture on thin slices of buttered brown bread.

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

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

  2. Tomato + peppertop 7% of all pairs
    Smell alikemoderate
    Cooked together17,923 recipes

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

  3. Cream + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

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

  4. Cream + sugartop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  5. Tomato + breadtop 10% of all pairs
    Smell alikemoderate
    Cooked together1,013 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

Eggs
Chopped whites add texture, and mashed yolks make the filling rich and binding.
Thick cream
Its fat makes the filling smooth, rich and easy to spread.
Tomato pulp
Adds moisture and mild acidity, giving the filling its fresh tomato flavour.
Butter
Coats the bread so the moist filling does not soak into it.

The step that matters

Mashing the yolks and blending them with cream. Yolks must be mashed fine so they blend smoothly with the cream. Lumps leave an uneven, grainy filling that tears thin bread when spread.

Swap the tomato

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

  1. Capsicumfits better
  2. Asparagusfits better
  3. Leekfits better
  4. Tomatothe original

Fit is the average pairing score against egg, cream, pepper, sugar, bread, butter. 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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