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Japanese Eggs

A dish of boiled eggs served over rice with cream or tomato sauce.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Rice and cream are a kitchen classic. They rank in the top 23% of all ingredient pairs, and cooks put them together in 3,399 recipes. Both carry 2-nonanone, which smells fruity, floral. The science ↓

Japanese Eggs

Ingredients

Directions

Prepare

  1. Boil the eggs until hard, then drop them in cold water and remove the shells.

  2. Cook the rice until full and flaky, then drain it.

Assemble and serve

  1. Heap the rice on a platter.

  2. Cut the eggs in half and press them down into the rice.

  3. Pour the cream or tomato sauce over the rice and eggs.

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 + creamtop 23% of all pairs
    Smell alikelow
    Cooked together3,399 recipes

    Shared aroma: 2-nonanone (fruity, floral).

  2. Egg + creamtop 24% of all pairs
    Smell alikelow
    Cooked together42,166 recipes

    Shared aroma: acetic acid (sour, vinegar).

  3. Egg + ricetop 28% of all pairs
    Smell alikemoderate
    Cooked together8,350 recipes

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

Egg and cream barely smell alike, yet cooks put them together in 42,166 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
Provide the main protein and the sliced topping that gives the dish its character.
Rice
Forms the bulk base that holds the eggs and sauce.
Cream sauce or tomato sauce
Adds moisture and flavour, soaking into the rice beneath the eggs.

“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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