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A Large Omelet

A large omelet made with eggs, onions, parsley, salt, pepper, and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

A Large Omelet

Ingredients

Directions

Prepare the egg mixture

  1. Beat the eggs until frothy.

  2. Add the chopped onions and minced parsley to the eggs.

  3. Season with salt and pepper to taste.

Cook and serve

  1. Heat butter in a frying pan over high heat.

  2. Pour the egg mixture into the pan and cook for 5 minutes.

  3. When set, fold the omelet in half and serve hot.

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

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

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

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

  4. Onion + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Parsley + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together28,563 recipes

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

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

What each ingredient does

Eggs
Set into a firm, tender structure as the proteins coagulate with heat.
Onions
Add sweet, mild flavor and some moisture to the omelet.
Butter
Provides fat for frying, adding richness and light browning on the surface.

The step that matters

Cooking the egg mixture in the pan. Eggs set as their proteins coagulate. Over high heat the bottom can scorch and brown before the top sets, leaving the omelet tough or dry. Watch for the surface to become set before folding.

Swap the onion

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

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

Fit is the average pairing score against egg, parsley, pepper, 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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