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Sole Au Gratin

A baked sole fillet topped with mushrooms, eschalots, parsley, breadcrumbs, butter, and seasonings, served in a gratin tin.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 34,122 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Sole Au Gratin

Ingredients

Directions

The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

  1. Preheat the oven to 400°F (200°C).

  2. In a bowl, combine the minced mushrooms, eschalots, and parsley.

  3. Butter an oval gratin tin and spread half of the herb mixture at the bottom.

  4. Sprinkle half of the bread crumbs over the herb mixture.

  5. Place the cleaned sole on top of the bread crumbs.

Assemble and bake

  1. Cover the sole with the remaining herb mixture and season with pepper and coarse sea salt.

  2. Dot the top with pieces of butter and sprinkle with the remaining bread crumbs.

  3. Pour stock or broth around the fish, ensuring it does not cover it.

  4. If desired, add white wine.

  5. Bake for 15 to 20 minutes and serve in the gratin tin.

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 aroma chemistry they share, and how many recipes mention both.

  1. Parsley + peppertop 2% of all pairs
    Aroma overlapstrong
    Mentioned together34,122 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  2. Mushroom + white winetop 5% of all pairs
    Aroma overlapmoderate
    Mentioned together1,765 recipes

    Shared aroma: ethyl octanoate (fruity).

  3. Butter + breadtop 7% of all pairs
    Aroma overlapmoderate
    Mentioned together27,232 recipes

    Shared aroma: delta-decalactone (sweet, creamy).

  4. Mushroom + buttertop 7% of all pairs
    Aroma overlapmoderate
    Mentioned together12,525 recipes

    Shared aroma: trans-2-decenal (waxy, orange).

  5. Butter + white winetop 9% of all pairs
    Aroma overlapmoderate
    Mentioned together5,083 recipes

    Shared aroma: ethyl octanoate (fruity, wine).

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

What each ingredient does

Sole
Forms the main body of the dish and cooks gently in the baking dish.
Button mushrooms
Add moisture and savoury flavour to the herb layers as they cook.
Butter
Adds fat and richness and helps the top brown in the oven.
Bread crumbs
Form a crisp, golden topping and absorb some of the juices.
Eschalots
Contribute a mild, aromatic onion flavour to the herb mixture.

The step that matters

Pour the stock around the fish, not over it. Keeping the liquid around the fish lets the sole steam gently under the crumbs, while the crumb topping still browns. Covering the fish with liquid would make it poach and turn the coating soggy.

Flavor stand-ins for the parsley

How well each one fits the dish's main ingredients (mushroom, butter, bread, pepper, white wine):

  1. Thymebetter flavor fit
  2. Marjoramabout as good a flavor fit
  3. Parsleythe original
  4. Garlicabout as good a flavor fit

Fit is the average pairing score against mushroom, butter, bread, pepper, white wine. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“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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