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Boston Fish Balls

Boston fish balls are made from mashed codfish, potatoes, egg, butter, pepper, and fried in salt pork fat.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Potato and pork are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,668 recipes. Both carry sotolon, which smells curry, maple. The science ↓

Boston Fish Balls

Ingredients

Directions

Prepare

  1. Pour boiling water over the codfish and potatoes in a pot.

  2. Boil for 30 minutes.

  3. Mash the mixture while hot.

Shape and fry

  1. Add the egg, butter, and pepper; mix well.

  2. Form the mixture into balls.

  3. Drop the balls into boiling salt pork fat and fry for 1 minute.

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. Potato + porktop 5% of all pairs
    Smell alikemoderate
    Cooked together2,668 recipes

    Shared aroma: sotolon (curry, maple).

  2. Potato + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together8,305 recipes

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

  3. Potato + buttertop 13% of all pairs
    Smell alikemoderate
    Cooked together6,456 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  4. Butter + porktop 13% of all pairs
    Smell alikemoderate
    Cooked together13,933 recipes

    Shared aroma: 2-furfurylthiol (coffee, roasted).

  5. Pepper + porktop 16% of all pairs
    Smell alikemoderate
    Cooked together22,121 recipes

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

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

What each ingredient does

Codfish
Provides the main salty, savory fish flavor and its flakes add body to the mash.
Potatoes
Supply starch and bulk, giving the mixture a soft, cohesive texture when mashed.
Egg
Binds the mashed mixture so the balls hold their shape while frying.
Butter
Adds fat for richness and moisture, softening the mash.

The step that matters

Drop the balls into boiling fat. The fish and potatoes are already cooked, so the brief fry mainly browns and crisps the outside. The fat must be hot enough to set the surface quickly; if it is too cool, the balls soak up grease and turn heavy.

Swap the potato

How well each one fits the dish's main ingredients (egg, butter, pepper, pork):

  1. Capsicumfits about as well
  2. Potatothe original
  3. Asparagusfits less well
  4. Chivefits less well

Fit is the average pairing score against egg, butter, pepper, pork. 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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