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Crab and Caper Eggs

A simple appetizer of hard‑boiled eggs filled with crab, capers, and seasonings, served on lettuce leaves.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Capers and lettuce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 372 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Crab and Caper Eggs

Ingredients

Directions

Prepare the filling

  1. Cut the hard-boiled eggs in half lengthwise and remove the yolks.

  2. In a bowl, mix the crab meat, capers, pepper, salt, butter, vinegar, and egg yolks until well combined.

Fill and serve

  1. Fill the egg whites with the mixture.

  2. Serve on lettuce leaves with mayonnaise.

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. Capers + lettucetop 1% of all pairs
    Smell alikestrong
    Cooked together372 recipes

    Shared aroma: coumarin (sweet, hay).

  2. Crab + meattop 8% of all pairs
    Smell alikemoderate
    Cooked together448 recipes

    Shared aroma: 2,3,5-trimethylpyrazine (cocoa, roasted).

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

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

  4. Crab + buttertop 10% of all pairs
    Smell alikemoderate
    Cooked together812 recipes

    Shared aroma: nonanal (fat, citrus).

  5. Capers + peppertop 12% of all pairs
    Smell alikemoderate
    Cooked together2,088 recipes

    Shared aroma: coumarin (sweet, hay).

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

What each ingredient does

Egg yolks
Blend with butter to make the filling rich and creamy.
Crab meat
Provides the main seafood flavor and soft, flaky texture in the filling.
Capers
Add briny, sharp notes that cut through the richness of the filling.
Butter
Adds fat that makes the filling smooth and rich.
Vinegar
Adds acidity that brightens the filling and balances the butter.

The step that matters

Cutting the eggs in half lengthwise. A clean, even cut keeps the egg whites intact so they can hold the filling. Torn or cracked whites leak and lose their shape, so cut gently and remove the yolks carefully.

Swap the lettuce

How well each one fits the dish's main ingredients (egg, crab, meat, capers, pepper, butter, vinegar):

  1. Mustardfits better
  2. Shallotfits better
  3. Chivefits about as well
  4. Lettucethe original

Fit is the average pairing score against egg, crab, meat, capers, pepper, butter, vinegar. 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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