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Sardine Sandwiches

A sandwich made with sardines, pepper, salt, lettuce, and optional lemon juice, served on buttered bread or cold biscuits.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Sardine Sandwiches

Ingredients

Directions

Prepare the sardines

  1. Drain the oil from the sardines and place them in hot water for a few minutes to remove grease.

  2. Pour away the water and dry the sardines with a cloth.

  3. Scrape off the skins and pound the sardines in a mortar until they form a paste.

Make the filling

  1. Add pepper, salt, and tiny pieces of lettuce to the sardine paste.

Assemble the sandwiches

  1. Spread the mixture on previously cut sandwiches or chop the sardines finely.

  2. If desired, squeeze a few drops of lemon juice into the chopped sardines and spread between buttered bread or cold biscuits.

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

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

  2. Pepper + lettucetop 9% of all pairs
    Smell alikemoderate
    Cooked together4,037 recipes

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

  3. Lettuce + lemontop 9% of all pairs
    Smell alikestrong
    Cooked together1,559 recipes

    Shared aroma: trans-2-hexenal (green, leafy).

  4. Lettuce + breadtop 15% of all pairs
    Smell alikemoderate
    Cooked together602 recipes

    Shared aroma: nonanal (fat, citrus).

  5. Pepper + breadtop 16% of all pairs
    Smell alikemoderate
    Cooked together20,964 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

Sardines
Provide the main savoury, oily flavour and the bulk of the filling.
Lettuce
Adds a crisp, fresh texture and a little moisture to the paste.
Lemon juice
Adds acidity that brightens the rich, oily fish flavour.

The step that matters

Pounding the sardines to a paste. Pounding breaks down the fish flesh so the filling spreads evenly. Removing the skins and drying the fish first keeps the paste smooth and stops excess water or oil from making the bread soggy.

Swap the lemon

The recipe marks lemon as optional. How well each one fits the dish's main ingredients (pepper, lettuce, bread):

  1. Avocadofits better
  2. Limefits better
  3. Lemonthe original
  4. Cherryfits about as well

Fit is the average pairing score against pepper, lettuce, 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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