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Kidney or Mushroom Omelets

A savory omelet made with eggs, cayenne pepper, milk, and diced kidneys, finished with butter and optional kidney gravy.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Kidney or Mushroom Omelets

Ingredients

Directions

Prepare

  1. Beat the eggs in a bowl, adding cayenne, salt, and milk while beating.

  2. Slightly broil the kidneys, seasoning with white pepper and salt.

  3. Cut the kidneys into small pieces.

  4. Add the kidney pieces to the beaten eggs.

Cook the omelet

  1. Melt the butter in an omelet pan over gentle heat until bubbling.

  2. Pour the egg mixture into the pan.

  3. Stir quickly until it begins to set.

  4. Move the pan away from the heat.

  5. Let the omelet firm up.

  6. Fold the omelet.

Serve

  1. Place it on a hot dish.

  2. Pour the kidney gravy around the omelet.

  3. Serve immediately.

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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

  2. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  4. Pepper + white peppertop 19% of all pairs
    Smell alikelow
    Cooked together1,478 recipes

    Shared aroma: piperonal (bitter, coconut).

  5. Pepper + buttertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

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

What each ingredient does

Eggs
Set into the structure of the omelet as they cook, holding the filling together.
Milk
Adds moisture, keeping the beaten eggs tender rather than dry.
Sheep's kidneys
Provide the main filling and a rich, savory flavor.
Butter
Fat in the pan that prevents sticking and adds richness.

The step that matters

Stir quickly until it begins to set, then move the pan off the heat. Eggs turn from liquid to curds quickly, and overcooking squeezes out moisture, making the omelet tough and dry. Stirring spreads the heat, and removing the pan lets residual heat finish setting the center gently.

Swap the white pepper

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

  1. Nutmegfits better
  2. Parsleyfits better
  3. Cinnamonfits better
  4. White pepperthe original

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