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Soft Shell Crabs

Soft shell crabs are washed, dipped in milk, rolled in flour, fried until golden, drained, and garnished with parsley.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Flour and parsley are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 16,675 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Soft Shell Crabs

Ingredients

Directions

Prepare

  1. Wash the crabs and remove the lungs from both sides.

  2. Dip the crabs in milk.

  3. Roll the crabs in flour.

Fry and serve

  1. Fry the crabs in plenty of very hot frying fat until golden brown.

  2. Drain the crabs and serve on a folded napkin.

  3. Garnish with a bunch of fresh parsley on top.

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. Flour + parsleytop 12% of all pairs
    Smell alikemoderate
    Cooked together16,675 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Crab + parsleytop 17% of all pairs
    Smell alikemoderate
    Cooked together330 recipes

    Shared aroma: 2-methylbutyraldehyde (malty, chocolate).

  4. Crab + flourtop 18% of all pairs
    Smell alikemoderate
    Cooked together384 recipes

    Shared aroma: hexanal (grass, green).

  5. Crab + milktop 23% of all pairs
    Smell alikemoderate
    Cooked together225 recipes

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

Milk and flour barely smell alike, yet cooks put them together in 78,219 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

Soft shell crabs
The main ingredient, cooked whole so its soft shell becomes crisp and edible.
Milk
Helps the flour adhere evenly to the crabs before frying.
Flour
Forms a light coating that fries to a golden, crisp crust.
Frying fat
Conducts heat to brown the coating and cook the crabs quickly.

The step that matters

Fry in plenty of very hot fat. If the fat is not hot enough or there is too little, the coating absorbs oil and turns greasy instead of browning and crisping. Enough hot fat keeps the temperature steady when the crabs go in.

Swap the parsley

How well each one fits the dish's main ingredients (crab, milk, flour):

  1. Cinnamonfits better
  2. Nutmegfits better
  3. Capersfits better
  4. Parsleythe original

Fit is the average pairing score against crab, milk, flour. 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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