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Omelette

A cooked egg mixture with milk, flour, butter, parsley, onion, salt, and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 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 cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Omelette

Ingredients

Directions

Prepare the mixture

  1. Beat the eggs together until light.

  2. Add the milk and flour, then mix in the onion, parsley, salt, and black pepper.

Cook the omelette

  1. Melt the butter in a well-heated pan.

  2. Pour in half of the mixture and shape it into a half moon using a spatula.

  3. Let it brown nicely, then turn it into a heated disk.

  4. Repeat with the remaining mixture.

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

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

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

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

  3. Parsley + oniontop 9% of all pairs
    Smell alikemoderate
    Cooked together25,843 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  4. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  5. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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 omelette as they cook, giving it body.
Milk
Adds moisture, keeping the eggs tender rather than dry and rubbery.
Flour
Thickens the egg mixture slightly, helping it hold together when folded.
Butter
Greases the pan and adds richness and browning to the surface.

The step that matters

Let it brown nicely, then turn it. Cooking in a well-heated pan sets the egg quickly; turning too early before the base has set can tear the omelette, while over-cooking makes it tough.

Swap the onion

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

  1. Shallotfits better
  2. Chivefits better
  3. Potatofits better
  4. Onionthe original

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