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Jajm Sandwich

A baked sandwich made with flour, butter, ground rice, sugar, eggs, and jam or lemon curd.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Rice and lemon are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 4,366 recipes. Both carry (e,e)-2,4-decadienal, which smells fatty, deep fried. The science ↓

Jajm Sandwich

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Preheat the oven to 350°F (175°C).

Make the batter

  1. In a bowl, rub together the flour, butter, ground rice, and castor sugar.

  2. Beat the eggs and add them to the mixture.

Bake and serve

  1. Pour the mixture into a greased baking dish and bake for 25-30 minutes.

  2. Once cooled, cut the baked mixture open and spread with jam or lemon curd.

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. Rice + lemontop 12% of all pairs
    Smell alikemoderate
    Cooked together4,366 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  2. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Rice + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together9,645 recipes

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

Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Eggs
Bind the mixture and add structure and richness as they set in the oven.
Butter
Adds fat and tenderness, giving the baked base a short, crumbly texture.
Flour
Provides the main structure that holds the baked base together.
Ground rice
Gives a slightly sandy, crisp texture compared with flour alone.
Castor sugar
Sweetens the base and helps it brown lightly in the oven.

The step that matters

Cutting the baked mixture open. Cutting while still warm can crumble or smear the base. Letting it cool fully lets the structure set so the layers cut cleanly before the jam or lemon curd is spread.

Swap the lemon

How well each one fits the dish's main ingredients (egg, rice, flour, butter, sugar):

  1. Raisinfits better
  2. Vanillafits better
  3. Coconutfits better
  4. Lemonthe original

Fit is the average pairing score against egg, rice, flour, butter, sugar. 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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