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Luncheon Layer Croquettes

A fried croquette sandwich made with tomato slices and a fish‑flavored cream filling.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Luncheon Layer Croquettes

Ingredients

Directions

Prepare the filling

  1. Wash and wipe the tomatoes, then slice them crosswise into ½ inch thick slices.

  2. In a saucepan, make a thick cream sauce by combining flour and milk, using double the usual amount of flour.

  3. Add the flaked fish to the sauce, mix well, season with salt and pepper, and let it cool.

Assemble and coat

  1. Sprinkle the tomato slices with salt and pepper.

  2. Layer the fish mixture between every two slices of tomato to create sandwiches.

  3. Coat each croquette with beaten egg, then roll in bread crumbs.

Fry and serve

  1. In a skillet, heat enough oil to be ½ inch deep when melted.

  2. Fry the croquettes over medium heat, browning each side and turning only once.

  3. Serve hot.

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. Tomato + peppertop 7% of all pairs
    Smell alikemoderate
    Cooked together17,923 recipes

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

  2. Tomato + breadtop 10% of all pairs
    Smell alikemoderate
    Cooked together1,013 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Fish + breadtop 10% of all pairs
    Smell alikemoderate
    Cooked together1,668 recipes

    Shared aroma: 2-undecenal (sweet).

  4. Milk + breadtop 11% of all pairs
    Smell alikemoderate
    Cooked together11,466 recipes

    Shared aroma: 2-undecenal (sweet).

  5. Fish + milktop 13% of all pairs
    Smell alikemoderate
    Cooked together1,432 recipes

    Shared aroma: 4-heptenal (creamy, biscuit).

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

What each ingredient does

All-purpose flour
Thickens the milk into a thick cream sauce that holds the fish together.
Milk
Forms the liquid base of the cream sauce, adding moisture to the filling.
Cooked fish
Provides the main filling, bound into the sauce so it stays moist inside the croquette.
Egg
Binds the bread crumb coating so it adheres to the croquette during frying.
Tomatoes
Adds moisture and acidity, and forms the outer slices that enclose the filling.

The step that matters

Let the fish filling cool before assembling. A hot, loose sauce stays soft and runs out during frying, so the filling must firm up to hold its shape and keep the coating intact.

Swap the tomato

How well each one fits the dish's main ingredients (fish, flour, milk, pepper, egg, bread):

  1. Capsicumfits better
  2. Asparagusfits better
  3. Potatofits about as well
  4. Tomatothe original

Fit is the average pairing score against fish, flour, milk, pepper, egg, bread. 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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