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Tart Are Sandwiches

A sandwich with finely chopped cold ham, sardines, pickles, mustard, walnut catsup, vinegar, salt, pepper, and cayenne.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Ham and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 2,536 recipes. Both carry 2-acetyl-1-pyrroline, which smells popcorn, roasted. The science ↓

Tart Are Sandwiches

Ingredients

Directions

  1. Chop the cold ham and sardines finely.

  2. Add the sour pickles, mustard, walnut catsup, and vinegar, then season with salt, pepper, and cayenne.

  3. Spread the mixture on thin slices of bread cut into diamonds.

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. Ham + breadtop 7% of all pairs
    Smell alikemoderate
    Cooked together2,536 recipes

    Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).

  2. Mustard + vinegartop 7% of all pairs
    Smell alikemoderate
    Cooked together14,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Mustard + walnuttop 9% of all pairs
    Smell alikestrong
    Cooked together849 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  4. Mustard + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together15,430 recipes

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

  5. Walnut + peppertop 13% of all pairs
    Smell alikemoderate
    Cooked together3,039 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 savory, oily fish base that gives the filling its main flavor.
Sour pickles
Add acidity and crisp texture that cut through the richness of the ham and fish.
Cold ham
Supplies the meaty body and salty, savory flavor of the filling.
Vinegar
Adds sharpness that brightens the filling and balances the fish and ham.

The step that matters

Chopping the ham and sardines finely. Fine chopping gives the filling an even, spreadable texture. Large pieces would make the mixture chunky and hard to spread thinly on the bread without tearing it.

Swap the walnut

How well each one fits the dish's main ingredients (ham, mustard, vinegar, pepper, bread):

  1. Lentilsfits better
  2. Beansfits better
  3. Chestnutfits better
  4. Walnutthe original

Fit is the average pairing score against ham, mustard, vinegar, pepper, 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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