Skip to main content
Main

Roti De Rognons De Veau

A French dish of roasted veal kidneys mixed with fat, mushrooms, herbs, and egg yolks, layered on fried bread and baked.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 13 ingredients
Jump to recipe ↓

Why it works: Parsley and thyme match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,057 recipes. Both carry cuminaldehyde, which smells Spicy, cumin. The science ↓

Roti De Rognons De Veau

Ingredients

Directions

Prepare the filling

  1. Roast the kidneys carefully over the fire.

  2. Chop the roasted kidneys and mix with fat, finely chopped fried mushrooms, parsley, chives, bay leaves, and thyme.

  3. Season the mixture with pepper and coarse sea salt.

  4. Combine the mixture with raw egg yolks to form a paste.

Assemble and serve

  1. Cut the crusts off the fried bread and spread thick layers of the kidney mixture on top.

  2. Sprinkle with bread crumbs mixed with raw eggs.

  3. Place the prepared slices on a dish, cover with a hot lid, and strew live cinders 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. Parsley + thymetop 1% of all pairs
    Smell alikestrong
    Cooked together9,057 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  2. Parsley + peppertop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

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

  3. Parsley + chivetop 3% of all pairs
    Smell alikestrong
    Cooked together2,150 recipes

    Shared aroma: coumarin (sweet, hay).

  4. Thyme + peppertop 4% of all pairs
    Smell alikemoderate
    Cooked together11,585 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  5. Chive + thymetop 5% of all pairs
    Smell alikestrong
    Cooked together580 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

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

What each ingredient does

Kidneys
Provide the main meaty filling and rich, savoury flavour.
Raw egg yolks
Bind the chopped mixture into a spreadable paste.
Fat
Adds richness and moisture to the chopped kidney filling.
Mushrooms
Add earthy flavour and moisture to the filling.
Butter
Adds richness and a rounded, savoury flavour.
Bread crumbs
Form a crisp topping that adds texture over the filling.

The step that matters

Place the prepared slices on a dish, cover with a hot lid, and strew live cinders on top.. The raw egg yolks and raw eggs in the filling and topping must be heated enough to cook and set safely. Covering with a hot lid traps heat around the slices so the surface cooks evenly while the bread crisps.

Swap the chive

How well each one fits the dish's main ingredients (mushroom, butter, parsley, thyme, pepper, egg, bread):

  1. Shallotfits better
  2. Leekfits about as well
  3. Capsicumfits about as well
  4. Chivethe original

Fit is the average pairing score against mushroom, butter, parsley, thyme, 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.

You might also like

Brown BreadBrown Bread461 recipesWhite BreadWhite Bread80 recipesBread OmeletteBread Omelette60 recipesMushroom SoupMushroom Soup60 recipes