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Onion Omelet

A savory omelet made with sautéed onions, cream, and seasonings.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Pepper and nutmeg match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 13,015 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Onion Omelet

Ingredients

Directions

Prepare the filling

  1. Slice the onions and sauté them until nearly done.

  2. Add cream, salt, pepper, and nutmeg to the onions.

Cook the omelet

  1. Mix the onion mixture with the eggs.

  2. Heat the mixture well and fry the omelet in oil or butter.

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 + nutmegtop 7% of all pairs
    Smell alikestrong
    Cooked together13,015 recipes

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

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

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

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

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

  4. Cream + nutmegtop 13% of all pairs
    Smell alikemoderate
    Cooked together7,920 recipes

    Shared aroma: acetic acid (sour, vinegar).

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

    Shared aroma: decanal (soap, orange peel).

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.
Onions
Add sweetness and savory depth as they soften and caramelize during sautéing.
Cream
Adds moisture and richness, keeping the eggs tender rather than dry.

The step that matters

Heat the mixture well and fry the omelet in oil or butter. Egg proteins set with heat, so the omelet needs enough heat to cook through and hold together. Too little heat leaves it runny; too much over-toughens and browns it before the centre sets.

Swap the onion

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

  1. Spinachfits better
  2. Potatofits better
  3. Leekfits better
  4. Onionthe original

Fit is the average pairing score against egg, cream, pepper, nutmeg, 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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