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Buttered Eggs

A dish of eggs cooked in browned butter with onion, seasoned with pepper, salt, and vinegar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Buttered Eggs

Ingredients

Directions

Make the browned butter

  1. Melt the butter in a frying pan.

  2. Fry the onion slices until brown, then remove them.

  3. Cook the butter until it is dark brown.

Cook and serve the eggs

  1. Break the eggs into the dark butter, ensuring they do not touch.

  2. Baste the eggs with the hot butter until set.

  3. Before serving, sprinkle with pepper, salt, and vinegar.

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

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

  2. Onion + vinegartop 14% of all pairs
    Smell alikemoderate
    Cooked together18,226 recipes

    Shared aroma: acetic acid (sour, vinegar).

  3. Pepper + vinegartop 14% of all pairs
    Smell alikemoderate
    Cooked together27,814 recipes

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

  4. Butter + oniontop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 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

Butter
Browns in the pan, giving the eggs a nutty, toasted flavour and carrying heat to the whites.
Eggs
Set into the hot butter to form the dish, with whites firming as they cook.
Vinegar
Adds a sharp acidity that balances the rich, browned butter.

The step that matters

Basting the eggs until set. Spooning hot butter over the eggs cooks the whites from above while the yolks stay soft. Keeping the eggs apart stops them merging, and removing the pan from the heat too early leaves the whites runny.

Swap the onion

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

  1. Capsicumfits better
  2. Mustardfits better
  3. Shallotfits better
  4. Onionthe original

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