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Crab Gumbo

A stew of crabs, onions, butter, flour, ham, file powder, served over rice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Onion and rice are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 10,433 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓

Crab Gumbo

Ingredients

Directions

Prepare the crabs

  1. Wash the crabs thoroughly to remove sand.

  2. Remove the feelers and gills, then cut the crabs into quarters.

Make the gumbo

  1. Brown the onions in the butter with the flour.

  2. Add the crabs and chopped ham to the pot.

  3. Pour in the cold water and bring to a simmer.

  4. Just before serving, sift in the file powder and do not let it boil.

Serve

  1. Serve with rice.

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. Onion + ricetop 9% of all pairs
    Smell alikemoderate
    Cooked together10,433 recipes

    Shared aroma: 2,4-decadienal (seaweed).

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

    Shared aroma: nonanal (fat, citrus).

  3. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Crab + oniontop 13% of all pairs
    Smell alikemoderate
    Cooked together311 recipes

    Shared aroma: acetoin (butter, cream).

  5. Crab + ricetop 13% of all pairs
    Smell alikemoderate
    Cooked together117 recipes

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

Butter and flour 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

Crabs
Provide the main protein and sweet, briny flavor that defines the dish.
Butter
Carries the browning of the onions and adds richness and fat to the broth.
Onions
Brown in the fat to build savory depth and sweetness as the base of the gumbo.
Flour
Browned with the butter to thicken the gumbo and add a nutty, toasted flavor.
Chopped ham
Adds smoky, salty meatiness that flavors the broth.
File powder
Thickens the broth and adds an earthy flavor when stirred in off the heat.

The step that matters

Adding the file powder. File powder is sifted in just before serving and must not boil. Boiling makes it stringy and ropy, and it can toughen and thicken the gumbo unevenly, so it should be stirred in off the heat or at a gentle simmer.

Swap the onion

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

  1. Okrafits better
  2. Asparagusfits about as well
  3. Mustardfits about as well
  4. Onionthe original

Fit is the average pairing score against crab, butter, flour, ham, rice. 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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