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Vegetable Omelet

A quick omelet made with onion, lettuce, eggs, cream, and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Pepper and parsley 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 ↓

Vegetable Omelet

Ingredients

Directions

Prepare

  1. Chop the onion and lettuce finely.

  2. Season with salt and pepper, then stir in the beaten eggs and cream.

Cook and serve

  1. Pour the mixture into a hot, buttered frying pan.

  2. Cook until thickened but not hardened, then fold over.

  3. Serve on a hot platter, garnished with parsley if desired.

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. Pepper + parsleytop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

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

  2. Lettuce + parsleytop 5% of all pairs
    Smell alikestrong
    Cooked together1,483 recipes

    Shared aroma: trans-2-hexenal (green, leafy).

  3. Onion + lettucetop 8% of all pairs
    Smell alikestrong
    Cooked together3,562 recipes

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

  4. Cream + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

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

  5. Onion + parsleytop 9% of all pairs
    Smell alikemoderate
    Cooked together25,843 recipes

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

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 and thicken.
Cream
Adds moisture and softness, keeping the eggs tender rather than rubbery.
Lettuce
Adds moisture and a crisp texture that softens slightly as it cooks.
Onion
Adds savory flavor and aroma as it cooks in the omelet.

The step that matters

Cook until thickened but not hardened. Eggs keep setting from residual heat after leaving the pan. Removing the omelet while it is still slightly moist keeps it tender, while overcooking tightens the proteins and makes it dry and rubbery.

Swap the parsley

The recipe marks parsley as optional. How well each one fits the dish's main ingredients (onion, lettuce, pepper, egg, cream, butter):

  1. Tarragonfits about as well
  2. Parsleythe original
  3. Capersfits about as well
  4. Nutmegfits less well

Fit is the average pairing score against onion, lettuce, pepper, egg, cream, 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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